BELGIUM -- SPOT EXCHANGE RATE, FRANCS/US$ ----------------------------------------- 4-Jan-71 49.7000 5-Jan-71 49.6800 6-Jan-71 49.6700 7-Jan-71 49.6600 8-Jan-71 49.6400 11-Jan-71 49.6400 12-Jan-71 49.6400 13-Jan-71 49.6300 14-Jan-71 49.6300 15-Jan-71 49.6300 18-Jan-71 49.6300 19-Jan-71 49.6300 20-Jan-71 49.6300 21-Jan-71 49.6300 22-Jan-71 49.6300 25-Jan-71 49.6400 26-Jan-71 49.6300 27-Jan-71 49.6300 28-Jan-71 49.6300 29-Jan-71 49.6300 1-Feb-71 49.6300 2-Feb-71 49.6400 3-Feb-71 49.6300 4-Feb-71 49.6300 5-Feb-71 49.6300 8-Feb-71 49.6400 9-Feb-71 49.6300 10-Feb-71 49.6400 11-Feb-71 49.6400 12-Feb-71 ND 15-Feb-71 ND 16-Feb-71 49.6300 17-Feb-71 49.6300 18-Feb-71 49.6300 19-Feb-71 49.6300 22-Feb-71 49.6300 23-Feb-71 49.6300 24-Feb-71 49.6300 25-Feb-71 49.6300 26-Feb-71 49.6300 1-Mar-71 49.6400 2-Mar-71 49.6400 3-Mar-71 49.6400 4-Mar-71 49.6300 5-Mar-71 49.6300 8-Mar-71 49.6300 9-Mar-71 49.6300 10-Mar-71 49.6300 11-Mar-71 49.6300 12-Mar-71 49.6300 15-Mar-71 49.6400 16-Mar-71 49.6400 17-Mar-71 49.6400 18-Mar-71 49.6500 19-Mar-71 49.6500 22-Mar-71 49.6500 23-Mar-71 49.6500 24-Mar-71 49.6500 25-Mar-71 49.6500 26-Mar-71 49.6500 29-Mar-71 49.6500 30-Mar-71 49.6400 31-Mar-71 49.6300 1-Apr-71 49.6300 2-Apr-71 49.6300 5-Apr-71 49.6400 6-Apr-71 49.6500 7-Apr-71 49.6400 8-Apr-71 49.6600 9-Apr-71 49.6600 12-Apr-71 49.6500 13-Apr-71 49.6800 14-Apr-71 49.6800 15-Apr-71 49.6400 16-Apr-71 49.6300 19-Apr-71 49.6500 20-Apr-71 49.6400 21-Apr-71 49.6300 22-Apr-71 49.6300 23-Apr-71 49.6300 26-Apr-71 49.6400 27-Apr-71 49.6400 28-Apr-71 49.6300 29-Apr-71 49.6300 30-Apr-71 49.6300 3-May-71 49.6300 4-May-71 49.6300 5-May-71 49.6200 6-May-71 49.5600 7-May-71 49.4900 10-May-71 49.0900 11-May-71 49.6300 12-May-71 49.6300 13-May-71 49.6300 14-May-71 49.6300 17-May-71 49.6300 18-May-71 49.6300 19-May-71 49.6300 20-May-71 49.6300 21-May-71 49.6300 24-May-71 49.6300 25-May-71 49.6300 26-May-71 49.6300 27-May-71 49.6500 28-May-71 49.6400 31-May-71 ND 1-Jun-71 49.6500 2-Jun-71 49.6600 3-Jun-71 49.6400 4-Jun-71 49.6300 7-Jun-71 49.6400 8-Jun-71 49.6500 9-Jun-71 49.6600 10-Jun-71 49.6900 11-Jun-71 49.7000 14-Jun-71 49.7300 15-Jun-71 49.8100 16-Jun-71 49.7900 17-Jun-71 49.8600 18-Jun-71 49.8200 21-Jun-71 49.8600 22-Jun-71 49.7600 23-Jun-71 49.6900 24-Jun-71 49.7000 25-Jun-71 49.7200 28-Jun-71 49.8200 29-Jun-71 49.8000 30-Jun-71 49.7500 1-Jul-71 49.7900 2-Jul-71 49.7600 5-Jul-71 ND 6-Jul-71 49.7800 7-Jul-71 49.7400 8-Jul-71 49.7300 9-Jul-71 49.7100 12-Jul-71 49.6500 13-Jul-71 49.6500 14-Jul-71 49.6300 15-Jul-71 49.6400 16-Jul-71 49.6300 19-Jul-71 49.6400 20-Jul-71 49.6400 21-Jul-71 49.6300 22-Jul-71 49.6300 23-Jul-71 49.6300 26-Jul-71 49.6300 27-Jul-71 49.6400 28-Jul-71 49.6400 29-Jul-71 49.6400 30-Jul-71 49.6300 2-Aug-71 49.6500 3-Aug-71 49.6600 4-Aug-71 49.6300 5-Aug-71 49.6300 6-Aug-71 49.6300 9-Aug-71 49.6300 10-Aug-71 49.6400 11-Aug-71 49.6300 12-Aug-71 49.6300 13-Aug-71 49.6300 16-Aug-71 ND 17-Aug-71 ND 18-Aug-71 ND 19-Aug-71 ND 20-Aug-71 ND 23-Aug-71 48.9000 24-Aug-71 48.5400 25-Aug-71 48.4100 26-Aug-71 48.3700 27-Aug-71 48.4200 30-Aug-71 48.1800 31-Aug-71 48.3100 1-Sep-71 48.4200 2-Sep-71 48.3000 3-Sep-71 48.3400 6-Sep-71 ND 7-Sep-71 48.3400 8-Sep-71 48.3600 9-Sep-71 48.3700 10-Sep-71 48.3300 13-Sep-71 48.2100 14-Sep-71 48.0900 15-Sep-71 48.0200 16-Sep-71 48.0600 17-Sep-71 47.9800 20-Sep-71 47.6700 21-Sep-71 47.5100 22-Sep-71 47.3600 23-Sep-71 47.1300 24-Sep-71 46.9700 27-Sep-71 47.1300 28-Sep-71 47.1600 29-Sep-71 47.1000 30-Sep-71 47.0500 1-Oct-71 47.0600 4-Oct-71 47.0800 5-Oct-71 47.1000 6-Oct-71 47.0300 7-Oct-71 46.9400 8-Oct-71 46.7100 11-Oct-71 ND 12-Oct-71 46.7700 13-Oct-71 46.8300 14-Oct-71 46.9200 15-Oct-71 46.8900 18-Oct-71 46.8600 19-Oct-71 46.8100 20-Oct-71 46.7300 21-Oct-71 46.7500 22-Oct-71 46.7300 25-Oct-71 ND 26-Oct-71 46.6900 27-Oct-71 47.1000 28-Oct-71 46.6300 29-Oct-71 46.6200 1-Nov-71 46.6100 2-Nov-71 ND 3-Nov-71 46.4900 4-Nov-71 46.4400 5-Nov-71 46.4000 8-Nov-71 46.4000 9-Nov-71 46.4000 10-Nov-71 46.4700 11-Nov-71 46.4700 12-Nov-71 46.4700 15-Nov-71 46.4700 16-Nov-71 46.4900 17-Nov-71 46.4600 18-Nov-71 46.4400 19-Nov-71 46.2300 22-Nov-71 46.2000 23-Nov-71 46.1200 24-Nov-71 45.9700 25-Nov-71 ND 26-Nov-71 46.1400 29-Nov-71 46.1900 30-Nov-71 46.2700 1-Dec-71 46.1100 2-Dec-71 45.9200 3-Dec-71 45.6800 6-Dec-71 45.5700 7-Dec-71 45.6600 8-Dec-71 45.8500 9-Dec-71 45.7500 10-Dec-71 45.7400 13-Dec-71 45.6600 14-Dec-71 45.5200 15-Dec-71 45.5100 16-Dec-71 45.5500 17-Dec-71 45.5400 20-Dec-71 ND 21-Dec-71 45.3900 22-Dec-71 45.3600 23-Dec-71 45.2500 24-Dec-71 45.1500 27-Dec-71 45.2600 28-Dec-71 45.2500 29-Dec-71 45.2400 30-Dec-71 44.8900 31-Dec-71 44.8200 3-Jan-72 44.9400 4-Jan-72 45.0000 5-Jan-72 44.9400 6-Jan-72 44.9400 7-Jan-72 44.8800 10-Jan-72 44.7700 11-Jan-72 44.7000 12-Jan-72 44.5400 13-Jan-72 44.4400 14-Jan-72 44.2300 17-Jan-72 44.2000 18-Jan-72 44.2200 19-Jan-72 44.2300 20-Jan-72 44.2000 21-Jan-72 44.2500 24-Jan-72 44.1600 25-Jan-72 44.0400 26-Jan-72 44.0500 27-Jan-72 44.0300 28-Jan-72 44.0300 31-Jan-72 43.9900 1-Feb-72 43.8800 2-Feb-72 43.8100 3-Feb-72 43.8400 4-Feb-72 43.9200 7-Feb-72 43.8800 8-Feb-72 43.8500 9-Feb-72 43.8400 10-Feb-72 43.8200 11-Feb-72 43.8300 14-Feb-72 43.8600 15-Feb-72 43.8400 16-Feb-72 43.8400 17-Feb-72 43.8200 18-Feb-72 43.8100 21-Feb-72 ND 22-Feb-72 43.8200 23-Feb-72 43.8200 24-Feb-72 43.8200 25-Feb-72 43.8200 28-Feb-72 43.8400 29-Feb-72 43.8600 1-Mar-72 43.8300 2-Mar-72 43.8200 3-Mar-72 43.8200 6-Mar-72 43.8200 7-Mar-72 43.8100 8-Mar-72 43.8000 9-Mar-72 43.8600 10-Mar-72 43.9500 13-Mar-72 43.9200 14-Mar-72 43.9200 15-Mar-72 43.9800 16-Mar-72 43.9600 17-Mar-72 44.0100 20-Mar-72 44.0300 21-Mar-72 43.9700 22-Mar-72 43.9700 23-Mar-72 44.0500 24-Mar-72 44.1100 27-Mar-72 44.0200 28-Mar-72 44.0200 29-Mar-72 44.0000 30-Mar-72 43.9900 31-Mar-72 44.0000 3-Apr-72 43.9700 4-Apr-72 43.9900 5-Apr-72 43.9900 6-Apr-72 43.9900 7-Apr-72 44.0100 10-Apr-72 44.0000 11-Apr-72 44.0000 12-Apr-72 44.0600 13-Apr-72 44.1200 14-Apr-72 44.1400 17-Apr-72 44.1800 18-Apr-72 44.3200 19-Apr-72 44.3200 20-Apr-72 44.1500 21-Apr-72 44.1200 24-Apr-72 44.1200 25-Apr-72 44.1000 26-Apr-72 44.2200 27-Apr-72 44.1900 28-Apr-72 44.1300 1-May-72 44.1100 2-May-72 44.0600 3-May-72 44.0200 4-May-72 44.0200 5-May-72 44.0700 8-May-72 44.0800 9-May-72 43.9900 10-May-72 43.9300 11-May-72 44.0100 12-May-72 43.9800 15-May-72 44.0100 16-May-72 44.0300 17-May-72 43.9900 18-May-72 43.9700 19-May-72 43.9400 22-May-72 43.9400 23-May-72 43.9400 24-May-72 43.9100 25-May-72 43.9100 26-May-72 43.9300 29-May-72 ND 30-May-72 43.9000 31-May-72 43.8600 1-Jun-72 43.8300 2-Jun-72 43.8300 5-Jun-72 43.8700 6-Jun-72 43.9100 7-Jun-72 43.8800 8-Jun-72 43.8700 9-Jun-72 43.8900 12-Jun-72 43.9000 13-Jun-72 43.8600 14-Jun-72 43.8200 15-Jun-72 43.9100 16-Jun-72 44.0500 19-Jun-72 44.0600 20-Jun-72 44.1700 21-Jun-72 44.2500 22-Jun-72 44.4500 23-Jun-72 43.8300 26-Jun-72 43.8100 27-Jun-72 43.9600 28-Jun-72 43.8900 29-Jun-72 43.8600 30-Jun-72 43.8200 3-Jul-72 43.8200 4-Jul-72 ND 5-Jul-72 43.8300 6-Jul-72 43.8200 7-Jul-72 43.8200 10-Jul-72 43.8200 11-Jul-72 43.8500 12-Jul-72 43.8400 13-Jul-72 43.8200 14-Jul-72 43.8000 17-Jul-72 43.8600 18-Jul-72 43.8300 19-Jul-72 43.8400 20-Jul-72 43.8600 21-Jul-72 43.8500 24-Jul-72 43.8600 25-Jul-72 43.8300 26-Jul-72 43.8200 27-Jul-72 43.8200 28-Jul-72 43.8400 31-Jul-72 43.8200 1-Aug-72 43.8200 2-Aug-72 43.8200 3-Aug-72 43.8200 4-Aug-72 43.8200 7-Aug-72 43.8100 8-Aug-72 43.8200 9-Aug-72 43.8200 10-Aug-72 43.8200 11-Aug-72 43.8400 14-Aug-72 43.8400 15-Aug-72 43.8400 16-Aug-72 43.8800 17-Aug-72 43.8900 18-Aug-72 43.8800 21-Aug-72 43.9200 22-Aug-72 43.8700 23-Aug-72 43.8700 24-Aug-72 43.8800 25-Aug-72 43.9300 28-Aug-72 43.9400 29-Aug-72 43.9800 30-Aug-72 43.9300 31-Aug-72 43.9500 1-Sep-72 43.9500 4-Sep-72 ND 5-Sep-72 43.9500 6-Sep-72 43.9300 7-Sep-72 43.8900 8-Sep-72 43.9000 11-Sep-72 43.9000 12-Sep-72 43.9200 13-Sep-72 43.9100 14-Sep-72 43.9100 15-Sep-72 43.9400 18-Sep-72 43.9800 19-Sep-72 43.9900 20-Sep-72 43.9700 21-Sep-72 43.9600 22-Sep-72 43.9500 25-Sep-72 43.9600 26-Sep-72 44.0300 27-Sep-72 44.0400 28-Sep-72 44.1100 29-Sep-72 44.2500 2-Oct-72 44.3600 3-Oct-72 44.3700 4-Oct-72 44.1800 5-Oct-72 44.0500 6-Oct-72 44.1000 9-Oct-72 ND 10-Oct-72 44.1500 11-Oct-72 44.1800 12-Oct-72 44.2100 13-Oct-72 44.1600 16-Oct-72 44.1800 17-Oct-72 44.1700 18-Oct-72 44.1500 19-Oct-72 44.1400 20-Oct-72 44.1400 23-Oct-72 ND 24-Oct-72 44.1700 25-Oct-72 44.1200 26-Oct-72 44.1300 27-Oct-72 44.1600 30-Oct-72 44.1800 31-Oct-72 44.1200 1-Nov-72 44.0900 2-Nov-72 44.1000 3-Nov-72 44.1100 6-Nov-72 44.1300 7-Nov-72 ND 8-Nov-72 44.1200 9-Nov-72 44.1000 10-Nov-72 44.0900 13-Nov-72 44.1000 14-Nov-72 44.1000 15-Nov-72 44.0900 16-Nov-72 44.0200 17-Nov-72 44.0800 20-Nov-72 44.1000 21-Nov-72 44.0900 22-Nov-72 44.0600 23-Nov-72 ND 24-Nov-72 44.0700 27-Nov-72 44.0200 28-Nov-72 44.0600 29-Nov-72 44.0400 30-Nov-72 44.0600 1-Dec-72 44.0700 4-Dec-72 44.0900 5-Dec-72 44.0800 6-Dec-72 44.0400 7-Dec-72 44.0600 8-Dec-72 44.0700 11-Dec-72 44.0900 12-Dec-72 44.1000 13-Dec-72 44.0900 14-Dec-72 44.0900 15-Dec-72 44.1500 18-Dec-72 44.1400 19-Dec-72 44.2000 20-Dec-72 44.1600 21-Dec-72 44.1200 22-Dec-72 44.1700 25-Dec-72 ND 26-Dec-72 44.1900 27-Dec-72 44.1500 28-Dec-72 44.1100 29-Dec-72 44.0700 1-Jan-73 ND 2-Jan-73 44.0900 3-Jan-73 44.1000 4-Jan-73 44.2300 5-Jan-73 44.2300 8-Jan-73 44.1900 9-Jan-73 44.1800 10-Jan-73 44.1400 11-Jan-73 44.1700 12-Jan-73 44.1800 15-Jan-73 44.2300 16-Jan-73 44.2500 17-Jan-73 44.2400 18-Jan-73 44.2500 19-Jan-73 44.2600 22-Jan-73 44.1000 23-Jan-73 44.1000 24-Jan-73 44.0600 25-Jan-73 44.0400 26-Jan-73 44.0400 29-Jan-73 43.9700 30-Jan-73 43.8200 31-Jan-73 43.8200 1-Feb-73 43.7700 2-Feb-73 43.9000 5-Feb-73 43.8700 6-Feb-73 43.8900 7-Feb-73 43.8300 8-Feb-73 43.8100 9-Feb-73 43.8100 12-Feb-73 ND 13-Feb-73 41.3700 14-Feb-73 40.9400 15-Feb-73 40.9000 16-Feb-73 40.8300 19-Feb-73 ND 20-Feb-73 40.8200 21-Feb-73 40.8100 22-Feb-73 40.4300 23-Feb-73 39.8400 26-Feb-73 39.8000 27-Feb-73 39.7900 28-Feb-73 39.4500 1-Mar-73 39.3700 2-Mar-73 38.8300 5-Mar-73 39.3000 6-Mar-73 39.2200 7-Mar-73 39.3000 8-Mar-73 39.1000 9-Mar-73 38.9900 12-Mar-73 38.4600 13-Mar-73 38.7600 14-Mar-73 39.3700 15-Mar-73 39.3000 16-Mar-73 39.4100 19-Mar-73 39.7200 20-Mar-73 39.6500 21-Mar-73 39.6800 22-Mar-73 39.6000 23-Mar-73 39.6400 26-Mar-73 39.6700 27-Mar-73 39.7300 28-Mar-73 39.8100 29-Mar-73 39.9500 30-Mar-73 40.1200 2-Apr-73 40.2000 3-Apr-73 40.3100 4-Apr-73 40.0500 5-Apr-73 39.9800 6-Apr-73 40.0600 9-Apr-73 40.0500 10-Apr-73 40.0800 11-Apr-73 40.0500 12-Apr-73 40.0400 13-Apr-73 40.0600 16-Apr-73 40.1000 17-Apr-73 40.1100 18-Apr-73 40.1800 19-Apr-73 40.2600 20-Apr-73 40.2300 23-Apr-73 40.2100 24-Apr-73 40.2600 25-Apr-73 40.3000 26-Apr-73 40.3100 27-Apr-73 40.3600 30-Apr-73 40.3400 1-May-73 40.3100 2-May-73 40.2900 3-May-73 40.2700 4-May-73 40.2700 7-May-73 40.3000 8-May-73 40.2700 9-May-73 40.1600 10-May-73 40.1600 11-May-73 40.0800 14-May-73 39.5500 15-May-73 39.1000 16-May-73 39.1700 17-May-73 39.2800 18-May-73 39.1800 21-May-73 38.6600 22-May-73 38.7200 23-May-73 38.7100 24-May-73 38.8300 25-May-73 38.9600 28-May-73 ND 29-May-73 38.6700 30-May-73 38.5000 31-May-73 38.4800 1-Jun-73 38.0400 4-Jun-73 37.4000 5-Jun-73 37.3800 6-Jun-73 38.1700 7-Jun-73 38.3000 8-Jun-73 37.9800 11-Jun-73 38.0200 12-Jun-73 37.9000 13-Jun-73 38.0200 14-Jun-73 37.9900 15-Jun-73 37.7700 18-Jun-73 37.5600 19-Jun-73 37.6000 20-Jun-73 37.6100 21-Jun-73 37.4500 22-Jun-73 37.3400 25-Jun-73 37.3500 26-Jun-73 37.2400 27-Jun-73 36.8300 28-Jun-73 36.2200 29-Jun-73 36.2000 2-Jul-73 35.9700 3-Jul-73 35.9700 4-Jul-73 ND 5-Jul-73 35.1200 6-Jul-73 34.5400 9-Jul-73 34.7200 10-Jul-73 36.5500 11-Jul-73 36.5500 12-Jul-73 36.1000 13-Jul-73 36.0800 16-Jul-73 35.8400 17-Jul-73 35.2500 18-Jul-73 35.0800 19-Jul-73 35.7000 20-Jul-73 35.4500 23-Jul-73 35.2000 24-Jul-73 35.2400 25-Jul-73 35.2300 26-Jul-73 35.1500 27-Jul-73 35.2700 30-Jul-73 35.6100 31-Jul-73 35.5200 1-Aug-73 35.5000 2-Aug-73 35.6800 3-Aug-73 35.7100 6-Aug-73 36.1000 7-Aug-73 35.9600 8-Aug-73 36.0000 9-Aug-73 36.1700 10-Aug-73 36.6000 13-Aug-73 36.7000 14-Aug-73 37.4200 15-Aug-73 37.4500 16-Aug-73 37.9100 17-Aug-73 37.8400 20-Aug-73 36.9900 21-Aug-73 37.5500 22-Aug-73 37.7300 23-Aug-73 37.9000 24-Aug-73 37.6600 27-Aug-73 37.7300 28-Aug-73 37.7500 29-Aug-73 37.5400 30-Aug-73 37.6400 31-Aug-73 37.6400 3-Sep-73 ND 4-Sep-73 37.5500 5-Sep-73 37.2800 6-Sep-73 37.3100 7-Sep-73 37.1300 10-Sep-73 37.2400 11-Sep-73 37.3300 12-Sep-73 37.2900 13-Sep-73 37.3200 14-Sep-73 37.3000 17-Sep-73 36.4600 18-Sep-73 36.4300 19-Sep-73 36.5600 20-Sep-73 36.1300 21-Sep-73 36.3500 24-Sep-73 36.5200 25-Sep-73 36.6300 26-Sep-73 36.7500 27-Sep-73 37.0500 28-Sep-73 36.8200 1-Oct-73 36.9300 2-Oct-73 36.9100 3-Oct-73 36.8900 4-Oct-73 36.9100 5-Oct-73 37.0000 8-Oct-73 ND 9-Oct-73 36.9000 10-Oct-73 36.7300 11-Oct-73 36.5500 12-Oct-73 36.4600 15-Oct-73 36.4600 16-Oct-73 36.2400 17-Oct-73 36.1600 18-Oct-73 36.2300 19-Oct-73 36.3500 22-Oct-73 ND 23-Oct-73 36.1300 24-Oct-73 36.1400 25-Oct-73 36.2700 26-Oct-73 36.5200 29-Oct-73 36.8700 30-Oct-73 36.9500 31-Oct-73 36.8700 1-Nov-73 36.8000 2-Nov-73 36.8000 5-Nov-73 37.1500 6-Nov-73 ND 7-Nov-73 37.8500 8-Nov-73 37.8100 9-Nov-73 38.1100 12-Nov-73 39.0900 13-Nov-73 38.9500 14-Nov-73 38.6000 15-Nov-73 38.8300 16-Nov-73 38.7600 19-Nov-73 38.8000 20-Nov-73 38.9300 21-Nov-73 38.9700 22-Nov-73 ND 23-Nov-73 39.8000 26-Nov-73 39.6100 27-Nov-73 39.5800 28-Nov-73 39.5300 29-Nov-73 39.6700 30-Nov-73 39.5500 3-Dec-73 39.7700 4-Dec-73 40.2000 5-Dec-73 40.0800 6-Dec-73 39.9400 7-Dec-73 40.1000 10-Dec-73 40.2200 11-Dec-73 40.2500 12-Dec-73 40.2100 13-Dec-73 40.2300 14-Dec-73 40.1900 17-Dec-73 40.2400 18-Dec-73 40.3000 19-Dec-73 40.3800 20-Dec-73 40.4900 21-Dec-73 40.6700 24-Dec-73 40.7000 25-Dec-73 ND 26-Dec-73 41.1900 27-Dec-73 41.2400 28-Dec-73 41.2500 31-Dec-73 41.3100 1-Jan-74 ND 2-Jan-74 41.9300 3-Jan-74 41.9500 4-Jan-74 42.1300 7-Jan-74 43.3500 8-Jan-74 43.5400 9-Jan-74 42.6900 10-Jan-74 42.5500 11-Jan-74 42.3000 14-Jan-74 42.6000 15-Jan-74 43.1000 16-Jan-74 42.8600 17-Jan-74 42.9700 18-Jan-74 42.8400 21-Jan-74 44.0100 22-Jan-74 43.6000 23-Jan-74 43.7600 24-Jan-74 43.0500 25-Jan-74 43.2000 28-Jan-74 43.1000 29-Jan-74 42.9200 30-Jan-74 42.5700 31-Jan-74 42.1500 1-Feb-74 42.1900 4-Feb-74 41.8800 5-Feb-74 41.8400 6-Feb-74 41.7100 7-Feb-74 41.7000 8-Feb-74 41.6500 11-Feb-74 41.5600 12-Feb-74 ND 13-Feb-74 41.2900 14-Feb-74 40.9800 15-Feb-74 40.8500 18-Feb-74 ND 19-Feb-74 40.6000 20-Feb-74 40.6600 21-Feb-74 40.4400 22-Feb-74 40.0500 25-Feb-74 40.4500 26-Feb-74 40.4000 27-Feb-74 40.5700 28-Feb-74 40.3100 1-Mar-74 40.4800 4-Mar-74 40.4300 5-Mar-74 40.2300 6-Mar-74 40.3700 7-Mar-74 40.3700 8-Mar-74 40.2600 11-Mar-74 40.1900 12-Mar-74 40.1500 13-Mar-74 40.1400 14-Mar-74 40.3200 15-Mar-74 40.1400 18-Mar-74 40.2000 19-Mar-74 40.1600 20-Mar-74 40.0000 21-Mar-74 39.5000 22-Mar-74 39.6800 25-Mar-74 39.2000 26-Mar-74 39.2500 27-Mar-74 39.5300 28-Mar-74 38.9500 29-Mar-74 39.2200 1-Apr-74 39.2900 2-Apr-74 39.1400 3-Apr-74 39.2500 4-Apr-74 39.2900 5-Apr-74 39.1400 8-Apr-74 39.0200 9-Apr-74 39.2500 10-Apr-74 39.4300 11-Apr-74 39.4300 12-Apr-74 39.4500 15-Apr-74 39.4500 16-Apr-74 39.4900 17-Apr-74 39.2200 18-Apr-74 39.1100 19-Apr-74 39.1700 22-Apr-74 38.8700 23-Apr-74 38.3700 24-Apr-74 38.3300 25-Apr-74 38.4300 26-Apr-74 38.2400 29-Apr-74 37.4800 30-Apr-74 37.9500 1-May-74 37.8500 2-May-74 37.9500 3-May-74 37.9500 6-May-74 37.6800 7-May-74 37.7700 8-May-74 37.4500 9-May-74 37.3800 10-May-74 37.3800 13-May-74 37.0200 14-May-74 36.8000 15-May-74 37.5500 16-May-74 37.5600 17-May-74 37.7000 20-May-74 37.9000 21-May-74 37.7500 22-May-74 37.5200 23-May-74 37.4100 24-May-74 37.5100 27-May-74 ND 28-May-74 37.9400 29-May-74 38.2000 30-May-74 38.1500 31-May-74 37.9900 3-Jun-74 37.8200 4-Jun-74 37.8100 5-Jun-74 37.6000 6-Jun-74 37.5800 7-Jun-74 37.6600 10-Jun-74 37.8100 11-Jun-74 37.9000 12-Jun-74 38.0400 13-Jun-74 37.9900 14-Jun-74 37.8600 17-Jun-74 37.8900 18-Jun-74 37.9100 19-Jun-74 37.9400 20-Jun-74 38.0200 21-Jun-74 38.1000 24-Jun-74 38.3900 25-Jun-74 38.2500 26-Jun-74 38.1500 27-Jun-74 37.8800 28-Jun-74 37.9700 1-Jul-74 38.1000 2-Jul-74 38.0200 3-Jul-74 37.9900 4-Jul-74 ND 5-Jul-74 38.0200 8-Jul-74 38.0400 9-Jul-74 38.0700 10-Jul-74 38.0700 11-Jul-74 38.0300 12-Jul-74 37.9500 15-Jul-74 37.9000 16-Jul-74 37.9000 17-Jul-74 37.8300 18-Jul-74 37.8200 19-Jul-74 37.8500 22-Jul-74 37.8100 23-Jul-74 37.6400 24-Jul-74 37.1200 25-Jul-74 37.6700 26-Jul-74 37.9000 29-Jul-74 38.0000 30-Jul-74 38.1700 31-Jul-74 38.1400 1-Aug-74 38.0600 2-Aug-74 38.0400 5-Aug-74 38.0300 6-Aug-74 38.0100 7-Aug-74 38.2200 8-Aug-74 38.4300 9-Aug-74 38.3300 12-Aug-74 38.4600 13-Aug-74 38.6800 14-Aug-74 38.7000 15-Aug-74 38.6800 16-Aug-74 38.7700 19-Aug-74 39.1500 20-Aug-74 39.0300 21-Aug-74 39.0200 22-Aug-74 39.1200 23-Aug-74 39.0800 26-Aug-74 39.1000 27-Aug-74 39.4300 28-Aug-74 39.2700 29-Aug-74 39.3500 30-Aug-74 39.3500 2-Sep-74 ND 3-Sep-74 39.3500 4-Sep-74 39.4600 5-Sep-74 39.6200 6-Sep-74 39.5600 9-Sep-74 39.5500 10-Sep-74 39.4900 11-Sep-74 39.4900 12-Sep-74 39.5300 13-Sep-74 39.4900 16-Sep-74 39.5300 17-Sep-74 39.4200 18-Sep-74 39.3500 19-Sep-74 39.4300 20-Sep-74 39.4300 23-Sep-74 39.3300 24-Sep-74 39.2800 25-Sep-74 39.3300 26-Sep-74 39.3300 27-Sep-74 39.2700 30-Sep-74 39.2900 1-Oct-74 39.1400 2-Oct-74 39.1900 3-Oct-74 39.1200 4-Oct-74 38.7500 7-Oct-74 38.7700 8-Oct-74 38.9100 9-Oct-74 38.6100 10-Oct-74 38.9000 11-Oct-74 38.8900 14-Oct-74 ND 15-Oct-74 38.6200 16-Oct-74 38.5400 17-Oct-74 38.4600 18-Oct-74 38.4400 21-Oct-74 38.5000 22-Oct-74 38.3700 23-Oct-74 38.1700 24-Oct-74 38.1200 25-Oct-74 38.1500 28-Oct-74 38.1700 29-Oct-74 38.0700 30-Oct-74 38.1700 31-Oct-74 38.1500 1-Nov-74 38.0400 4-Nov-74 38.0300 5-Nov-74 ND 6-Nov-74 38.0100 7-Nov-74 37.9800 8-Nov-74 38.1700 11-Nov-74 ND 12-Nov-74 38.2100 13-Nov-74 38.2000 14-Nov-74 37.7000 15-Nov-74 37.6900 18-Nov-74 37.2100 19-Nov-74 37.3700 20-Nov-74 37.7400 21-Nov-74 37.7900 22-Nov-74 37.5200 25-Nov-74 37.2600 26-Nov-74 37.2000 27-Nov-74 37.1900 28-Nov-74 ND 29-Nov-74 37.2600 2-Dec-74 37.4100 3-Dec-74 37.5000 4-Dec-74 37.2400 5-Dec-74 37.1700 6-Dec-74 37.2100 9-Dec-74 37.1000 10-Dec-74 37.1100 11-Dec-74 37.0100 12-Dec-74 36.8100 13-Dec-74 37.0100 16-Dec-74 36.8700 17-Dec-74 36.4400 18-Dec-74 36.6300 19-Dec-74 36.6000 20-Dec-74 36.6300 23-Dec-74 36.5000 24-Dec-74 36.5000 25-Dec-74 ND 26-Dec-74 36.7000 27-Dec-74 36.6300 30-Dec-74 36.1700 31-Dec-74 36.1100 1-Jan-75 ND 2-Jan-75 36.2800 3-Jan-75 36.0300 6-Jan-75 35.5500 7-Jan-75 35.5600 8-Jan-75 35.9100 9-Jan-75 35.7900 10-Jan-75 35.7300 13-Jan-75 35.8100 14-Jan-75 35.9500 15-Jan-75 35.8900 16-Jan-75 35.7400 17-Jan-75 35.6400 20-Jan-75 35.4400 21-Jan-75 35.2600 22-Jan-75 35.2100 23-Jan-75 35.0000 24-Jan-75 35.3500 27-Jan-75 34.6000 28-Jan-75 34.6600 29-Jan-75 35.0800 30-Jan-75 35.0900 31-Jan-75 34.9900 3-Feb-75 35.2600 4-Feb-75 35.4900 5-Feb-75 35.5100 6-Feb-75 35.3000 7-Feb-75 35.3100 10-Feb-75 34.9500 11-Feb-75 35.2700 12-Feb-75 ND 13-Feb-75 34.7900 14-Feb-75 34.9000 17-Feb-75 ND 18-Feb-75 34.6600 19-Feb-75 34.7200 20-Feb-75 34.6400 21-Feb-75 34.5100 24-Feb-75 34.3300 25-Feb-75 34.3900 26-Feb-75 34.0700 27-Feb-75 34.0100 28-Feb-75 34.0100 3-Mar-75 33.9300 4-Mar-75 34.0800 5-Mar-75 34.1400 6-Mar-75 34.1500 7-Mar-75 34.5100 10-Mar-75 34.5100 11-Mar-75 34.2800 12-Mar-75 34.4800 13-Mar-75 34.5700 14-Mar-75 34.3600 17-Mar-75 34.3500 18-Mar-75 34.2300 19-Mar-75 34.1400 20-Mar-75 34.2300 21-Mar-75 34.3300 24-Mar-75 34.2300 25-Mar-75 34.5500 26-Mar-75 34.6600 27-Mar-75 34.7200 28-Mar-75 34.7500 31-Mar-75 34.8700 1-Apr-75 34.7200 2-Apr-75 34.7000 3-Apr-75 34.8100 4-Apr-75 35.1600 7-Apr-75 35.2000 8-Apr-75 35.1600 9-Apr-75 35.1200 10-Apr-75 35.4000 11-Apr-75 35.3400 14-Apr-75 35.5200 15-Apr-75 35.3200 16-Apr-75 35.3400 17-Apr-75 35.2900 18-Apr-75 35.2700 21-Apr-75 35.2700 22-Apr-75 35.2100 23-Apr-75 34.9700 24-Apr-75 35.0200 25-Apr-75 35.2600 28-Apr-75 35.3700 29-Apr-75 35.1600 30-Apr-75 35.1800 1-May-75 35.1200 2-May-75 35.2200 5-May-75 35.0400 6-May-75 35.0400 7-May-75 34.9000 8-May-75 34.8600 9-May-75 34.9600 12-May-75 34.9700 13-May-75 34.7600 14-May-75 34.8400 15-May-75 35.0300 16-May-75 34.9700 19-May-75 34.8900 20-May-75 34.8600 21-May-75 34.7300 22-May-75 34.7200 23-May-75 34.7700 26-May-75 ND 27-May-75 34.9800 28-May-75 34.8900 29-May-75 34.9700 30-May-75 34.9700 2-Jun-75 35.0100 3-Jun-75 34.9000 4-Jun-75 34.9200 5-Jun-75 34.9200 6-Jun-75 34.9800 9-Jun-75 35.0000 10-Jun-75 34.9100 11-Jun-75 34.8900 12-Jun-75 34.8100 13-Jun-75 34.8200 16-Jun-75 34.8100 17-Jun-75 34.8100 18-Jun-75 34.8900 19-Jun-75 34.9400 20-Jun-75 34.9100 23-Jun-75 35.0200 24-Jun-75 35.0600 25-Jun-75 35.0500 26-Jun-75 35.0600 27-Jun-75 35.2000 30-Jun-75 35.3000 1-Jul-75 35.4800 2-Jul-75 35.7500 3-Jul-75 35.8000 4-Jul-75 ND 7-Jul-75 35.9800 8-Jul-75 35.8900 9-Jul-75 35.8800 10-Jul-75 36.1100 11-Jul-75 36.2000 14-Jul-75 36.5200 15-Jul-75 36.6400 16-Jul-75 36.9300 17-Jul-75 37.0000 18-Jul-75 37.1400 21-Jul-75 37.2900 22-Jul-75 37.2400 23-Jul-75 37.6100 24-Jul-75 37.6200 25-Jul-75 37.5400 28-Jul-75 37.9900 29-Jul-75 38.2000 30-Jul-75 38.3600 31-Jul-75 38.4300 1-Aug-75 38.3600 4-Aug-75 38.2000 5-Aug-75 37.9700 6-Aug-75 38.0500 7-Aug-75 38.3100 8-Aug-75 38.3100 11-Aug-75 38.3600 12-Aug-75 38.3800 13-Aug-75 38.3500 14-Aug-75 38.3100 15-Aug-75 38.3700 18-Aug-75 38.2400 19-Aug-75 38.1200 20-Aug-75 38.2000 21-Aug-75 38.2400 22-Aug-75 38.2600 25-Aug-75 38.2700 26-Aug-75 38.2800 27-Aug-75 38.3100 28-Aug-75 38.3700 29-Aug-75 38.4400 1-Sep-75 ND 2-Sep-75 38.5600 3-Sep-75 38.4600 4-Sep-75 38.5700 5-Sep-75 38.5700 8-Sep-75 38.5900 9-Sep-75 38.5800 10-Sep-75 38.6100 11-Sep-75 38.6100 12-Sep-75 38.7300 15-Sep-75 38.8100 16-Sep-75 39.2900 17-Sep-75 39.4100 18-Sep-75 39.5300 19-Sep-75 39.6700 22-Sep-75 40.0400 23-Sep-75 40.2800 24-Sep-75 39.9500 25-Sep-75 39.8700 26-Sep-75 39.9700 29-Sep-75 40.2000 30-Sep-75 39.9400 1-Oct-75 39.4500 2-Oct-75 39.4900 3-Oct-75 39.7800 6-Oct-75 39.4300 7-Oct-75 39.2300 8-Oct-75 39.3300 9-Oct-75 39.2800 10-Oct-75 38.9300 13-Oct-75 ND 14-Oct-75 39.2800 15-Oct-75 38.8200 16-Oct-75 38.6800 17-Oct-75 38.8000 20-Oct-75 38.8000 21-Oct-75 38.9400 22-Oct-75 38.5600 23-Oct-75 38.6100 24-Oct-75 38.6800 27-Oct-75 38.7000 28-Oct-75 38.7600 29-Oct-75 38.7200 30-Oct-75 38.6100 31-Oct-75 38.5200 3-Nov-75 38.5200 4-Nov-75 ND 5-Nov-75 38.8000 6-Nov-75 38.6700 7-Nov-75 38.7000 10-Nov-75 38.6900 11-Nov-75 ND 12-Nov-75 38.8300 13-Nov-75 38.9000 14-Nov-75 39.0500 17-Nov-75 39.4000 18-Nov-75 39.2400 19-Nov-75 39.2800 20-Nov-75 39.1200 21-Nov-75 39.1300 24-Nov-75 39.2000 25-Nov-75 39.1800 26-Nov-75 39.3900 27-Nov-75 ND 28-Nov-75 39.5100 1-Dec-75 39.4200 2-Dec-75 39.4000 3-Dec-75 39.4000 4-Dec-75 39.4000 5-Dec-75 39.5200 8-Dec-75 39.4900 9-Dec-75 39.5900 10-Dec-75 39.6000 11-Dec-75 39.6700 12-Dec-75 39.6000 15-Dec-75 39.7300 16-Dec-75 39.6700 17-Dec-75 39.5300 18-Dec-75 39.5000 19-Dec-75 39.4100 22-Dec-75 39.4500 23-Dec-75 39.3900 24-Dec-75 39.4200 25-Dec-75 ND 26-Dec-75 39.4100 29-Dec-75 39.5300 30-Dec-75 39.5300 31-Dec-75 39.5400 1-Jan-76 ND 2-Jan-76 39.5100 5-Jan-76 39.2500 6-Jan-76 39.2200 7-Jan-76 39.1700 8-Jan-76 39.1900 9-Jan-76 39.3100 12-Jan-76 39.2800 13-Jan-76 39.3100 14-Jan-76 39.2900 15-Jan-76 39.2800 16-Jan-76 39.3100 19-Jan-76 39.3000 20-Jan-76 39.3300 21-Jan-76 39.4200 22-Jan-76 39.3400 23-Jan-76 39.3500 26-Jan-76 39.3200 27-Jan-76 39.3400 28-Jan-76 39.2900 29-Jan-76 39.3000 30-Jan-76 39.2600 2-Feb-76 38.9700 3-Feb-76 39.1000 4-Feb-76 39.1300 5-Feb-76 39.2400 6-Feb-76 39.3000 9-Feb-76 39.2700 10-Feb-76 39.2200 11-Feb-76 39.0200 12-Feb-76 ND 13-Feb-76 39.0900 16-Feb-76 ND 17-Feb-76 39.1600 18-Feb-76 39.0500 19-Feb-76 39.0400 20-Feb-76 39.1600 23-Feb-76 39.1100 24-Feb-76 39.0900 25-Feb-76 39.1300 26-Feb-76 39.1400 27-Feb-76 39.1800 1-Mar-76 39.2500 2-Mar-76 39.3000 3-Mar-76 39.3200 4-Mar-76 39.3500 5-Mar-76 39.3900 8-Mar-76 39.3800 9-Mar-76 39.3800 10-Mar-76 39.4900 11-Mar-76 39.6800 12-Mar-76 39.6900 15-Mar-76 39.7000 16-Mar-76 39.7600 17-Mar-76 39.3700 18-Mar-76 39.1800 19-Mar-76 39.2500 22-Mar-76 38.6500 23-Mar-76 38.6100 24-Mar-76 38.7400 25-Mar-76 38.9500 26-Mar-76 39.1000 29-Mar-76 39.1000 30-Mar-76 39.0500 31-Mar-76 39.0400 1-Apr-76 38.8700 2-Apr-76 39.0500 5-Apr-76 38.9700 6-Apr-76 38.9700 7-Apr-76 39.0000 8-Apr-76 39.0000 9-Apr-76 39.0300 12-Apr-76 39.0200 13-Apr-76 38.9700 14-Apr-76 38.9100 15-Apr-76 39.0200 16-Apr-76 38.9700 19-Apr-76 38.9700 20-Apr-76 38.9900 21-Apr-76 39.0300 22-Apr-76 39.0200 23-Apr-76 39.0100 26-Apr-76 38.9400 27-Apr-76 38.9300 28-Apr-76 38.8700 29-Apr-76 38.8300 30-Apr-76 38.7900 3-May-76 38.7700 4-May-76 38.8200 5-May-76 38.8000 6-May-76 38.7900 7-May-76 38.8400 10-May-76 38.8700 11-May-76 38.9700 12-May-76 39.0700 13-May-76 39.0600 14-May-76 39.1200 17-May-76 39.4600 18-May-76 39.4300 19-May-76 39.3100 20-May-76 39.3300 21-May-76 39.4700 24-May-76 39.4200 25-May-76 39.4800 26-May-76 39.5600 27-May-76 39.5100 28-May-76 39.7800 31-May-76 ND 1-Jun-76 39.7900 2-Jun-76 39.7500 3-Jun-76 39.7600 4-Jun-76 39.7800 7-Jun-76 39.6800 8-Jun-76 39.6500 9-Jun-76 39.4400 10-Jun-76 39.5700 11-Jun-76 39.6000 14-Jun-76 39.5900 15-Jun-76 39.5700 16-Jun-76 39.5500 17-Jun-76 39.6000 18-Jun-76 39.6500 21-Jun-76 39.7100 22-Jun-76 39.6900 23-Jun-76 39.6200 24-Jun-76 39.5200 25-Jun-76 39.6400 28-Jun-76 39.7100 29-Jun-76 39.7300 30-Jun-76 39.7100 1-Jul-76 39.7200 2-Jul-76 39.7000 5-Jul-76 ND 6-Jul-76 39.6700 7-Jul-76 39.7500 8-Jul-76 39.7100 9-Jul-76 39.7700 12-Jul-76 39.7600 13-Jul-76 39.7500 14-Jul-76 39.7000 15-Jul-76 39.7400 16-Jul-76 39.8000 19-Jul-76 39.7700 20-Jul-76 39.8100 21-Jul-76 39.7900 22-Jul-76 39.7900 23-Jul-76 39.7600 26-Jul-76 39.7500 27-Jul-76 39.7600 28-Jul-76 39.6700 29-Jul-76 39.4900 30-Jul-76 39.3100 2-Aug-76 39.1800 3-Aug-76 39.2700 4-Aug-76 39.2000 5-Aug-76 39.2500 6-Aug-76 39.2700 9-Aug-76 39.2700 10-Aug-76 39.2900 11-Aug-76 39.2500 12-Aug-76 39.2900 13-Aug-76 39.1500 16-Aug-76 39.0700 17-Aug-76 38.7100 18-Aug-76 38.7000 19-Aug-76 38.8500 20-Aug-76 38.9700 23-Aug-76 38.9000 24-Aug-76 38.7000 25-Aug-76 38.7300 26-Aug-76 38.7500 27-Aug-76 38.8300 30-Aug-76 38.8100 31-Aug-76 38.8700 1-Sep-76 38.7600 2-Sep-76 38.8300 3-Sep-76 38.8500 6-Sep-76 ND 7-Sep-76 38.8100 8-Sep-76 38.8100 9-Sep-76 38.7700 10-Sep-76 38.8000 13-Sep-76 38.6400 14-Sep-76 38.5800 15-Sep-76 38.3900 16-Sep-76 38.4300 17-Sep-76 38.3300 20-Sep-76 38.2100 21-Sep-76 38.0400 22-Sep-76 37.9900 23-Sep-76 38.2400 24-Sep-76 38.2100 27-Sep-76 38.0500 28-Sep-76 38.0100 29-Sep-76 37.9500 30-Sep-76 37.6400 1-Oct-76 37.8200 4-Oct-76 37.6100 5-Oct-76 37.2300 6-Oct-76 37.2800 7-Oct-76 37.4800 8-Oct-76 37.4900 11-Oct-76 ND 12-Oct-76 37.5000 13-Oct-76 37.2700 14-Oct-76 37.3300 15-Oct-76 37.4200 18-Oct-76 37.5600 19-Oct-76 37.4500 20-Oct-76 37.1600 21-Oct-76 37.2100 22-Oct-76 37.2200 25-Oct-76 36.9700 26-Oct-76 37.0200 27-Oct-76 36.8800 28-Oct-76 36.8200 29-Oct-76 36.9700 1-Nov-76 36.9300 2-Nov-76 ND 3-Nov-76 36.9000 4-Nov-76 37.1100 5-Nov-76 37.1500 8-Nov-76 37.0700 9-Nov-76 37.2300 10-Nov-76 37.1300 11-Nov-76 ND 12-Nov-76 37.0800 15-Nov-76 37.0600 16-Nov-76 37.0900 17-Nov-76 37.1300 18-Nov-76 37.1200 19-Nov-76 37.0600 22-Nov-76 36.7800 23-Nov-76 36.6800 24-Nov-76 36.6800 25-Nov-76 ND 26-Nov-76 36.7800 29-Nov-76 36.7500 30-Nov-76 36.7600 1-Dec-76 36.7700 2-Dec-76 36.8500 3-Dec-76 36.7600 6-Dec-76 36.6100 7-Dec-76 36.6300 8-Dec-76 36.6100 9-Dec-76 36.6000 10-Dec-76 36.5900 13-Dec-76 36.6000 14-Dec-76 36.5500 15-Dec-76 36.5600 16-Dec-76 36.4000 17-Dec-76 36.4600 20-Dec-76 36.2300 21-Dec-76 36.1800 22-Dec-76 36.1300 23-Dec-76 36.2400 24-Dec-76 36.2600 27-Dec-76 36.1100 28-Dec-76 36.0000 29-Dec-76 35.9300 30-Dec-76 35.9100 31-Dec-76 35.9300 3-Jan-77 35.8100 4-Jan-77 35.7500 5-Jan-77 35.8800 6-Jan-77 35.9100 7-Jan-77 36.3200 10-Jan-77 36.7000 11-Jan-77 36.5600 12-Jan-77 36.6100 13-Jan-77 36.8100 14-Jan-77 36.9800 17-Jan-77 36.8700 18-Jan-77 36.9500 19-Jan-77 37.0400 20-Jan-77 36.9400 21-Jan-77 36.8900 24-Jan-77 36.9500 25-Jan-77 37.2700 26-Jan-77 37.2600 27-Jan-77 37.2400 28-Jan-77 37.0200 31-Jan-77 37.0400 1-Feb-77 37.0200 2-Feb-77 37.0700 3-Feb-77 37.1200 4-Feb-77 37.1400 7-Feb-77 37.0000 8-Feb-77 36.9300 9-Feb-77 37.0000 10-Feb-77 36.9700 11-Feb-77 36.8800 14-Feb-77 36.6900 15-Feb-77 36.7700 16-Feb-77 36.8100 17-Feb-77 36.8500 18-Feb-77 36.8500 21-Feb-77 ND 22-Feb-77 36.7500 23-Feb-77 36.7400 24-Feb-77 36.8200 25-Feb-77 36.7000 28-Feb-77 36.6400 1-Mar-77 36.6300 2-Mar-77 36.6600 3-Mar-77 36.6400 4-Mar-77 36.6800 7-Mar-77 36.6800 8-Mar-77 36.6800 9-Mar-77 36.7600 10-Mar-77 36.8100 11-Mar-77 36.8400 14-Mar-77 36.8000 15-Mar-77 36.7500 16-Mar-77 36.7000 17-Mar-77 36.6900 18-Mar-77 36.7000 21-Mar-77 36.6600 22-Mar-77 36.6700 23-Mar-77 36.6300 24-Mar-77 36.6500 25-Mar-77 36.6600 28-Mar-77 36.6100 29-Mar-77 36.6600 30-Mar-77 36.6300 31-Mar-77 36.6100 1-Apr-77 36.6000 4-Apr-77 36.6000 5-Apr-77 36.5800 6-Apr-77 36.5500 7-Apr-77 36.5200 8-Apr-77 36.5500 11-Apr-77 36.5600 12-Apr-77 36.4300 13-Apr-77 36.3000 14-Apr-77 36.2800 15-Apr-77 36.3800 18-Apr-77 36.2600 19-Apr-77 36.3000 20-Apr-77 36.3300 21-Apr-77 36.3100 22-Apr-77 36.3200 25-Apr-77 36.1800 26-Apr-77 36.2300 27-Apr-77 36.1200 28-Apr-77 36.0200 29-Apr-77 35.9800 2-May-77 36.0600 3-May-77 36.1400 4-May-77 35.9500 5-May-77 36.0100 6-May-77 36.0800 9-May-77 36.0900 10-May-77 36.1300 11-May-77 36.2600 12-May-77 36.2100 13-May-77 36.1600 16-May-77 36.1900 17-May-77 36.1700 18-May-77 36.1100 19-May-77 36.0500 20-May-77 36.0900 23-May-77 36.1000 24-May-77 36.0900 25-May-77 36.0400 26-May-77 36.0300 27-May-77 36.0900 30-May-77 ND 31-May-77 36.0800 1-Jun-77 36.0700 2-Jun-77 36.0300 3-Jun-77 36.0700 6-Jun-77 36.0800 7-Jun-77 36.1100 8-Jun-77 36.0800 9-Jun-77 36.0600 10-Jun-77 36.0700 13-Jun-77 36.0800 14-Jun-77 36.0600 15-Jun-77 36.0600 16-Jun-77 36.0600 17-Jun-77 36.0800 20-Jun-77 36.0900 21-Jun-77 36.1100 22-Jun-77 36.0800 23-Jun-77 36.0900 24-Jun-77 36.0900 27-Jun-77 36.1600 28-Jun-77 36.2100 29-Jun-77 36.0800 30-Jun-77 36.0700 1-Jul-77 36.0600 4-Jul-77 ND 5-Jul-77 35.9300 6-Jul-77 35.9500 7-Jul-77 35.8000 8-Jul-77 35.8100 11-Jul-77 35.6300 12-Jul-77 35.6400 13-Jul-77 35.5500 14-Jul-77 ND 15-Jul-77 35.6300 18-Jul-77 35.4500 19-Jul-77 35.3600 20-Jul-77 35.2100 21-Jul-77 35.0900 22-Jul-77 35.0800 25-Jul-77 34.9100 26-Jul-77 34.8900 27-Jul-77 35.1200 28-Jul-77 35.1400 29-Jul-77 35.3700 1-Aug-77 35.5100 2-Aug-77 35.3700 3-Aug-77 35.3700 4-Aug-77 35.4100 5-Aug-77 35.3200 8-Aug-77 35.5100 9-Aug-77 35.4500 10-Aug-77 35.5400 11-Aug-77 35.5400 12-Aug-77 35.7000 15-Aug-77 35.7100 16-Aug-77 35.8800 17-Aug-77 35.7100 18-Aug-77 35.7300 19-Aug-77 35.6500 22-Aug-77 35.5700 23-Aug-77 35.5700 24-Aug-77 35.4600 25-Aug-77 35.5700 26-Aug-77 35.6000 29-Aug-77 35.7400 30-Aug-77 35.7200 31-Aug-77 35.6500 1-Sep-77 35.6600 2-Sep-77 35.9800 5-Sep-77 ND 6-Sep-77 35.7100 7-Sep-77 35.6500 8-Sep-77 35.7400 9-Sep-77 35.8000 12-Sep-77 35.8800 13-Sep-77 35.8700 14-Sep-77 35.9300 15-Sep-77 35.8900 16-Sep-77 35.8900 19-Sep-77 35.8800 20-Sep-77 35.8400 21-Sep-77 35.8400 22-Sep-77 35.8600 23-Sep-77 35.8700 26-Sep-77 35.8400 27-Sep-77 35.8700 28-Sep-77 35.8800 29-Sep-77 35.8000 30-Sep-77 35.7100 3-Oct-77 35.5800 4-Oct-77 35.6300 5-Oct-77 35.6100 6-Oct-77 35.5300 7-Oct-77 35.5700 10-Oct-77 ND 11-Oct-77 35.6300 12-Oct-77 35.5600 13-Oct-77 35.5100 14-Oct-77 35.4200 17-Oct-77 35.3400 18-Oct-77 35.3000 19-Oct-77 35.4000 20-Oct-77 35.3700 21-Oct-77 35.3700 24-Oct-77 35.2900 25-Oct-77 35.2700 26-Oct-77 35.2700 27-Oct-77 35.3200 28-Oct-77 35.2800 31-Oct-77 35.2400 1-Nov-77 35.0600 2-Nov-77 35.1500 3-Nov-77 35.1900 4-Nov-77 35.3200 7-Nov-77 35.3900 8-Nov-77 ND 9-Nov-77 35.5000 10-Nov-77 35.4700 11-Nov-77 ND 14-Nov-77 35.2700 15-Nov-77 35.3400 16-Nov-77 35.3400 17-Nov-77 35.2900 18-Nov-77 35.3000 21-Nov-77 35.1800 22-Nov-77 35.1800 23-Nov-77 35.1400 24-Nov-77 ND 25-Nov-77 34.9700 28-Nov-77 34.9200 29-Nov-77 35.0400 30-Nov-77 35.0800 1-Dec-77 34.9200 2-Dec-77 34.7600 5-Dec-77 34.4900 6-Dec-77 34.3500 7-Dec-77 34.1500 8-Dec-77 34.3100 9-Dec-77 34.5600 12-Dec-77 34.2500 13-Dec-77 33.9300 14-Dec-77 33.6200 15-Dec-77 33.8500 16-Dec-77 33.7200 19-Dec-77 33.3100 20-Dec-77 33.2700 21-Dec-77 33.1500 22-Dec-77 33.6500 23-Dec-77 33.5100 26-Dec-77 ND 27-Dec-77 33.4400 28-Dec-77 33.0400 29-Dec-77 32.5700 30-Dec-77 32.6800 2-Jan-78 ND 3-Jan-78 32.3800 4-Jan-78 32.2100 5-Jan-78 33.5600 6-Jan-78 33.1100 9-Jan-78 33.2200 10-Jan-78 33.1200 11-Jan-78 32.7200 12-Jan-78 33.1700 13-Jan-78 32.8900 16-Jan-78 32.8800 17-Jan-78 32.9800 18-Jan-78 33.0600 19-Jan-78 33.0000 20-Jan-78 32.9400 23-Jan-78 32.7800 24-Jan-78 32.6800 25-Jan-78 32.5400 26-Jan-78 32.6300 27-Jan-78 32.8400 30-Jan-78 32.8400 31-Jan-78 32.7100 1-Feb-78 32.7300 2-Feb-78 32.7200 3-Feb-78 32.6900 6-Feb-78 32.6300 7-Feb-78 32.6500 8-Feb-78 32.7700 9-Feb-78 32.7700 10-Feb-78 32.7700 13-Feb-78 ND 14-Feb-78 32.4600 15-Feb-78 32.4900 16-Feb-78 32.2600 17-Feb-78 32.2300 20-Feb-78 ND 21-Feb-78 31.9800 22-Feb-78 31.8200 23-Feb-78 31.5100 24-Feb-78 32.0500 27-Feb-78 32.0200 28-Feb-78 31.5500 1-Mar-78 31.3500 2-Mar-78 31.4100 3-Mar-78 31.5200 6-Mar-78 31.6400 7-Mar-78 31.4200 8-Mar-78 31.5200 9-Mar-78 31.6100 10-Mar-78 32.0800 13-Mar-78 31.8000 14-Mar-78 31.8200 15-Mar-78 31.9000 16-Mar-78 31.6600 17-Mar-78 31.7700 20-Mar-78 31.7800 21-Mar-78 31.9100 22-Mar-78 31.7500 23-Mar-78 31.7500 24-Mar-78 31.7200 27-Mar-78 31.7100 28-Mar-78 31.6500 29-Mar-78 31.5700 30-Mar-78 31.5900 31-Mar-78 31.2500 3-Apr-78 31.3200 4-Apr-78 31.6500 5-Apr-78 31.4700 6-Apr-78 31.4900 7-Apr-78 31.4700 10-Apr-78 31.3500 11-Apr-78 31.3700 12-Apr-78 31.3500 13-Apr-78 31.5500 14-Apr-78 31.6500 17-Apr-78 31.7900 18-Apr-78 31.8500 19-Apr-78 31.9200 20-Apr-78 32.4500 21-Apr-78 32.4500 24-Apr-78 32.3400 25-Apr-78 32.3300 26-Apr-78 32.4100 27-Apr-78 32.1900 28-Apr-78 32.2900 1-May-78 32.2000 2-May-78 32.3600 3-May-78 32.4000 4-May-78 32.2600 5-May-78 32.3400 8-May-78 32.4900 9-May-78 32.5800 10-May-78 32.5600 11-May-78 32.7900 12-May-78 32.9600 15-May-78 33.0400 16-May-78 33.2800 17-May-78 33.3100 18-May-78 32.9100 19-May-78 33.0000 22-May-78 33.1900 23-May-78 33.2300 24-May-78 33.2200 25-May-78 33.1500 26-May-78 33.1300 29-May-78 33.0800 30-May-78 ND 31-May-78 32.7800 1-Jun-78 32.7200 2-Jun-78 32.6700 5-Jun-78 32.6600 6-Jun-78 32.7100 7-Jun-78 32.6900 8-Jun-78 32.6300 9-Jun-78 32.6600 12-Jun-78 32.6300 13-Jun-78 32.6300 14-Jun-78 32.6800 15-Jun-78 32.8900 16-Jun-78 32.8800 19-Jun-78 32.7900 20-Jun-78 32.7500 21-Jun-78 32.6100 22-Jun-78 32.8000 23-Jun-78 32.6300 26-Jun-78 32.5800 27-Jun-78 32.6300 28-Jun-78 32.6300 29-Jun-78 32.6600 30-Jun-78 32.6800 3-Jul-78 32.6400 4-Jul-78 ND 5-Jul-78 32.3000 6-Jul-78 32.5900 7-Jul-78 32.4400 10-Jul-78 32.2500 11-Jul-78 32.3300 12-Jul-78 32.4000 13-Jul-78 32.3700 14-Jul-78 32.4800 17-Jul-78 32.6200 18-Jul-78 32.5800 19-Jul-78 32.5200 20-Jul-78 32.4500 21-Jul-78 32.3600 24-Jul-78 32.1900 25-Jul-78 32.3000 26-Jul-78 32.3900 27-Jul-78 32.4400 28-Jul-78 32.2500 31-Jul-78 32.1300 1-Aug-78 32.1600 2-Aug-78 32.1400 3-Aug-78 32.0700 4-Aug-78 32.0400 7-Aug-78 31.7100 8-Aug-78 31.3500 9-Aug-78 31.3000 10-Aug-78 31.2300 11-Aug-78 31.0800 14-Aug-78 30.7700 15-Aug-78 30.6200 16-Aug-78 30.5700 17-Aug-78 31.2500 18-Aug-78 31.0800 21-Aug-78 31.4700 22-Aug-78 31.3000 23-Aug-78 31.4400 24-Aug-78 31.4000 25-Aug-78 31.6300 28-Aug-78 31.7500 29-Aug-78 31.5500 30-Aug-78 31.3700 31-Aug-78 31.3300 1-Sep-78 31.2500 4-Sep-78 ND 5-Sep-78 31.2900 6-Sep-78 31.2300 7-Sep-78 31.3200 8-Sep-78 31.5100 11-Sep-78 31.4700 12-Sep-78 31.4200 13-Sep-78 31.1800 14-Sep-78 31.2800 15-Sep-78 31.2200 18-Sep-78 31.1500 19-Sep-78 31.1300 20-Sep-78 30.9400 21-Sep-78 30.7900 22-Sep-78 30.8100 25-Sep-78 30.6000 26-Sep-78 30.7000 27-Sep-78 30.5800 28-Sep-78 30.5900 29-Sep-78 30.5800 2-Oct-78 30.5000 3-Oct-78 30.1800 4-Oct-78 29.9500 5-Oct-78 29.9200 6-Oct-78 30.0000 9-Oct-78 ND 10-Oct-78 29.8800 11-Oct-78 29.4500 12-Oct-78 29.5200 13-Oct-78 29.3400 16-Oct-78 29.3300 17-Oct-78 29.1500 18-Oct-78 28.9700 19-Oct-78 29.0100 20-Oct-78 28.6500 23-Oct-78 28.5300 24-Oct-78 28.5200 25-Oct-78 28.1400 26-Oct-78 27.7300 27-Oct-78 27.7500 30-Oct-78 27.1200 31-Oct-78 27.6200 1-Nov-78 28.8000 2-Nov-78 29.4000 3-Nov-78 29.6900 6-Nov-78 29.8600 7-Nov-78 ND 8-Nov-78 29.4300 9-Nov-78 29.5000 10-Nov-78 29.5900 13-Nov-78 29.5800 14-Nov-78 29.6000 15-Nov-78 29.6900 16-Nov-78 30.0200 17-Nov-78 30.4500 20-Nov-78 30.4700 21-Nov-78 30.2900 22-Nov-78 30.2900 23-Nov-78 ND 24-Nov-78 30.3000 27-Nov-78 30.3600 28-Nov-78 30.3600 29-Nov-78 31.0500 30-Nov-78 30.4500 1-Dec-78 30.6500 4-Dec-78 30.5300 5-Dec-78 30.3100 6-Dec-78 30.3000 7-Dec-78 30.2800 8-Dec-78 30.2500 11-Dec-78 30.0700 12-Dec-78 30.1300 13-Dec-78 30.1900 14-Dec-78 30.0500 15-Dec-78 29.9300 18-Dec-78 29.3700 19-Dec-78 29.1000 20-Dec-78 29.1000 21-Dec-78 29.4100 22-Dec-78 29.3300 25-Dec-78 ND 26-Dec-78 29.3500 27-Dec-78 28.7500 28-Dec-78 28.9100 29-Dec-78 28.8100 1-Jan-79 ND 2-Jan-79 28.7500 3-Jan-79 29.1800 4-Jan-79 29.1600 5-Jan-79 29.1300 8-Jan-79 29.0400 9-Jan-79 29.2300 10-Jan-79 29.1600 11-Jan-79 29.3300 12-Jan-79 29.2800 15-Jan-79 29.2800 16-Jan-79 29.1700 17-Jan-79 29.1200 18-Jan-79 29.0100 19-Jan-79 29.0800 22-Jan-79 29.1100 23-Jan-79 29.1700 24-Jan-79 29.1100 25-Jan-79 29.2500 26-Jan-79 29.2400 29-Jan-79 29.3100 30-Jan-79 29.3200 31-Jan-79 29.4400 1-Feb-79 29.6300 2-Feb-79 29.6900 5-Feb-79 29.3500 6-Feb-79 29.3100 7-Feb-79 29.0000 8-Feb-79 29.2300 9-Feb-79 29.1600 12-Feb-79 ND 13-Feb-79 29.3100 14-Feb-79 29.3000 15-Feb-79 29.2000 16-Feb-79 29.2300 19-Feb-79 ND 20-Feb-79 29.2600 21-Feb-79 29.2700 22-Feb-79 29.2100 23-Feb-79 29.2200 26-Feb-79 29.2000 27-Feb-79 29.2200 28-Feb-79 29.2600 1-Mar-79 29.3200 2-Mar-79 29.4100 5-Mar-79 29.4200 6-Mar-79 29.3900 7-Mar-79 29.3400 8-Mar-79 29.3400 9-Mar-79 29.3700 12-Mar-79 29.4100 13-Mar-79 29.5000 14-Mar-79 29.4000 15-Mar-79 29.4500 16-Mar-79 29.4600 19-Mar-79 29.4600 20-Mar-79 29.4800 21-Mar-79 29.4900 22-Mar-79 29.4400 23-Mar-79 29.4900 26-Mar-79 29.3700 27-Mar-79 29.4700 28-Mar-79 29.4400 29-Mar-79 29.5600 30-Mar-79 29.5900 2-Apr-79 29.7900 3-Apr-79 29.7500 4-Apr-79 29.7900 5-Apr-79 29.8500 6-Apr-79 29.9100 9-Apr-79 30.1200 10-Apr-79 30.0700 11-Apr-79 30.0300 12-Apr-79 30.1500 13-Apr-79 30.1600 16-Apr-79 30.1500 17-Apr-79 30.1800 18-Apr-79 30.1200 19-Apr-79 30.0800 20-Apr-79 30.1800 23-Apr-79 30.1500 24-Apr-79 30.1100 25-Apr-79 30.0800 26-Apr-79 30.1400 27-Apr-79 30.1300 30-Apr-79 30.2400 1-May-79 30.1800 2-May-79 30.2600 3-May-79 30.3300 4-May-79 30.3100 7-May-79 30.2600 8-May-79 30.3000 9-May-79 30.3300 10-May-79 30.4100 11-May-79 30.4000 14-May-79 30.4000 15-May-79 30.5400 16-May-79 30.4900 17-May-79 30.6200 18-May-79 30.8000 21-May-79 30.8400 22-May-79 30.8100 23-May-79 30.8400 24-May-79 30.8000 25-May-79 30.8000 28-May-79 30.8400 29-May-79 30.9100 30-May-79 ND 31-May-79 30.7000 1-Jun-79 30.8200 4-Jun-79 30.7800 5-Jun-79 30.7700 6-Jun-79 30.8000 7-Jun-79 30.7200 8-Jun-79 30.7300 11-Jun-79 30.7300 12-Jun-79 30.7500 13-Jun-79 30.6700 14-Jun-79 30.6400 15-Jun-79 30.3200 18-Jun-79 30.3700 19-Jun-79 30.0300 20-Jun-79 29.8700 21-Jun-79 29.8200 22-Jun-79 29.8000 25-Jun-79 29.5100 26-Jun-79 29.6900 27-Jun-79 29.6200 28-Jun-79 29.6500 29-Jun-79 29.5200 2-Jul-79 29.5300 3-Jul-79 29.5500 4-Jul-79 ND 5-Jul-79 29.3500 6-Jul-79 29.4300 9-Jul-79 29.5200 10-Jul-79 29.4600 11-Jul-79 29.3000 12-Jul-79 29.3000 13-Jul-79 29.3300 16-Jul-79 29.1800 17-Jul-79 28.9600 18-Jul-79 28.8200 19-Jul-79 28.8800 20-Jul-79 29.1000 23-Jul-79 28.9800 24-Jul-79 28.8900 25-Jul-79 28.9900 26-Jul-79 29.0900 27-Jul-79 29.1400 30-Jul-79 29.1900 31-Jul-79 29.3600 1-Aug-79 29.2600 2-Aug-79 29.2300 3-Aug-79 29.3100 6-Aug-79 29.2800 7-Aug-79 29.2500 8-Aug-79 29.2400 9-Aug-79 29.1800 10-Aug-79 29.1700 13-Aug-79 29.2500 14-Aug-79 29.3000 15-Aug-79 29.3300 16-Aug-79 29.2900 17-Aug-79 29.3600 20-Aug-79 29.3600 21-Aug-79 29.3600 22-Aug-79 29.3200 23-Aug-79 29.3000 24-Aug-79 29.3000 27-Aug-79 29.3300 28-Aug-79 29.3500 29-Aug-79 29.3800 30-Aug-79 29.2500 31-Aug-79 29.2900 3-Sep-79 ND 4-Sep-79 29.2600 5-Sep-79 29.2100 6-Sep-79 29.0800 7-Sep-79 29.0800 10-Sep-79 28.9900 11-Sep-79 29.0800 12-Sep-79 29.0400 13-Sep-79 29.0800 14-Sep-79 29.1300 17-Sep-79 29.0900 18-Sep-79 29.0300 19-Sep-79 29.0000 20-Sep-79 28.3900 21-Sep-79 28.4300 24-Sep-79 28.4900 25-Sep-79 28.6100 26-Sep-79 28.4600 27-Sep-79 28.2000 28-Sep-79 28.2300 1-Oct-79 28.1200 2-Oct-79 28.3600 3-Oct-79 28.3400 4-Oct-79 28.5300 5-Oct-79 28.4300 8-Oct-79 ND 9-Oct-79 29.1000 10-Oct-79 28.8000 11-Oct-79 28.9000 12-Oct-79 28.8500 15-Oct-79 28.9000 16-Oct-79 29.0100 17-Oct-79 29.0100 18-Oct-79 28.9800 19-Oct-79 28.9600 22-Oct-79 28.9900 23-Oct-79 29.0700 24-Oct-79 28.9900 25-Oct-79 28.9900 26-Oct-79 29.0500 29-Oct-79 29.2000 30-Oct-79 29.1800 31-Oct-79 29.1100 1-Nov-79 29.0000 2-Nov-79 28.8300 5-Nov-79 28.9500 6-Nov-79 ND 7-Nov-79 28.9200 8-Nov-79 29.0000 9-Nov-79 29.0300 12-Nov-79 ND 13-Nov-79 29.0400 14-Nov-79 28.9000 15-Nov-79 28.9400 16-Nov-79 28.7300 19-Nov-79 28.5600 20-Nov-79 28.6400 21-Nov-79 28.5100 22-Nov-79 ND 23-Nov-79 28.5900 26-Nov-79 28.5300 27-Nov-79 28.4900 28-Nov-79 28.4700 29-Nov-79 28.3800 30-Nov-79 28.1700 3-Dec-79 27.9100 4-Dec-79 28.1100 5-Dec-79 28.4300 6-Dec-79 28.4900 7-Dec-79 28.5200 10-Dec-79 28.5100 11-Dec-79 28.2900 12-Dec-79 28.3000 13-Dec-79 28.1800 14-Dec-79 28.3500 17-Dec-79 28.2900 18-Dec-79 28.1900 19-Dec-79 28.1300 20-Dec-79 28.2300 21-Dec-79 28.2700 24-Dec-79 28.2100 25-Dec-79 ND 26-Dec-79 28.1800 27-Dec-79 27.9500 28-Dec-79 28.0300 31-Dec-79 28.0500 1-Jan-80 ND 2-Jan-80 27.8700 3-Jan-80 27.7800 4-Jan-80 27.8900 7-Jan-80 27.7900 8-Jan-80 27.8700 9-Jan-80 27.8400 10-Jan-80 27.9000 11-Jan-80 27.9600 14-Jan-80 27.9300 15-Jan-80 28.0600 16-Jan-80 27.9500 17-Jan-80 28.0200 18-Jan-80 27.9800 21-Jan-80 28.0600 22-Jan-80 28.1700 23-Jan-80 28.1100 24-Jan-80 28.1200 25-Jan-80 28.2100 28-Jan-80 28.2000 29-Jan-80 28.2000 30-Jan-80 28.2000 31-Jan-80 28.3600 1-Feb-80 28.3400 4-Feb-80 28.3300 5-Feb-80 28.2700 6-Feb-80 28.1400 7-Feb-80 28.2500 8-Feb-80 28.2700 11-Feb-80 28.2000 12-Feb-80 ND 13-Feb-80 28.1500 14-Feb-80 28.2000 15-Feb-80 28.3100 18-Feb-80 ND 19-Feb-80 28.3800 20-Feb-80 28.3900 21-Feb-80 28.4000 22-Feb-80 28.5700 25-Feb-80 28.5900 26-Feb-80 28.6100 27-Feb-80 28.5900 28-Feb-80 28.6400 29-Feb-80 28.8400 3-Mar-80 28.9600 4-Mar-80 29.0400 5-Mar-80 29.0400 6-Mar-80 29.1400 7-Mar-80 29.1800 10-Mar-80 29.4100 11-Mar-80 29.4200 12-Mar-80 29.3700 13-Mar-80 29.5800 14-Mar-80 29.8600 17-Mar-80 30.4000 18-Mar-80 30.4800 19-Mar-80 30.2100 20-Mar-80 30.1300 21-Mar-80 30.3500 24-Mar-80 30.5000 25-Mar-80 30.5500 26-Mar-80 30.5100 27-Mar-80 30.8200 28-Mar-80 30.9500 31-Mar-80 31.2700 1-Apr-80 31.5500 2-Apr-80 31.4300 3-Apr-80 31.5200 4-Apr-80 31.6500 7-Apr-80 31.7000 8-Apr-80 31.2100 9-Apr-80 30.3600 10-Apr-80 30.2700 11-Apr-80 30.3200 14-Apr-80 30.1900 15-Apr-80 30.4600 16-Apr-80 30.0500 17-Apr-80 29.9300 18-Apr-80 29.8500 21-Apr-80 29.7500 22-Apr-80 29.8500 23-Apr-80 29.1600 24-Apr-80 29.1100 25-Apr-80 29.0000 28-Apr-80 28.8300 29-Apr-80 28.9500 30-Apr-80 29.0300 1-May-80 29.0400 2-May-80 29.2800 5-May-80 28.7900 6-May-80 28.8300 7-May-80 28.6900 8-May-80 28.9400 9-May-80 29.1700 12-May-80 28.8200 13-May-80 28.9300 14-May-80 28.8100 15-May-80 28.8200 16-May-80 28.8600 19-May-80 28.9200 20-May-80 28.9200 21-May-80 28.6700 22-May-80 28.6900 23-May-80 28.5100 26-May-80 ND 27-May-80 28.2800 28-May-80 28.3800 29-May-80 28.4400 30-May-80 28.4100 2-Jun-80 28.4900 3-Jun-80 28.4300 4-Jun-80 28.4100 5-Jun-80 28.4100 6-Jun-80 28.3800 9-Jun-80 28.3000 10-Jun-80 28.3000 11-Jun-80 28.2800 12-Jun-80 28.2500 13-Jun-80 28.1200 16-Jun-80 28.2800 17-Jun-80 28.2800 18-Jun-80 28.1800 19-Jun-80 28.2700 20-Jun-80 28.3100 23-Jun-80 28.2900 24-Jun-80 28.3000 25-Jun-80 28.2900 26-Jun-80 28.2600 27-Jun-80 28.2600 30-Jun-80 28.2200 1-Jul-80 28.1600 2-Jul-80 28.1600 3-Jul-80 28.1300 4-Jul-80 ND 7-Jul-80 27.8800 8-Jul-80 27.8500 9-Jul-80 27.8900 10-Jul-80 27.8400 11-Jul-80 27.8600 14-Jul-80 27.9600 15-Jul-80 27.9600 16-Jul-80 27.9600 17-Jul-80 27.8300 18-Jul-80 27.9900 21-Jul-80 27.8700 22-Jul-80 27.7900 23-Jul-80 27.8000 24-Jul-80 27.7600 25-Jul-80 27.7900 28-Jul-80 27.8200 29-Jul-80 28.1000 30-Jul-80 28.3300 31-Jul-80 28.3900 1-Aug-80 28.6300 4-Aug-80 28.4800 5-Aug-80 28.3500 6-Aug-80 28.2700 7-Aug-80 28.4300 8-Aug-80 28.4500 11-Aug-80 28.4500 12-Aug-80 28.4400 13-Aug-80 28.4900 14-Aug-80 28.5200 15-Aug-80 28.5200 18-Aug-80 28.7500 19-Aug-80 28.7900 20-Aug-80 28.7400 21-Aug-80 28.7300 22-Aug-80 29.9300 25-Aug-80 28.8900 26-Aug-80 28.8600 27-Aug-80 28.8500 28-Aug-80 28.7000 29-Aug-80 28.8200 1-Sep-80 ND 2-Sep-80 28.6000 3-Sep-80 28.5100 4-Sep-80 28.4700 5-Sep-80 28.5300 8-Sep-80 28.5000 9-Sep-80 28.5200 10-Sep-80 28.5500 11-Sep-80 28.5000 12-Sep-80 28.5500 15-Sep-80 28.6100 16-Sep-80 28.6200 17-Sep-80 28.5700 18-Sep-80 28.7500 19-Sep-80 28.7800 22-Sep-80 29.0000 23-Sep-80 29.0400 24-Sep-80 28.7600 25-Sep-80 28.8200 26-Sep-80 28.9400 29-Sep-80 29.0700 30-Sep-80 29.0200 1-Oct-80 28.9700 2-Oct-80 29.0700 3-Oct-80 29.0500 6-Oct-80 28.9000 7-Oct-80 28.9700 8-Oct-80 28.9700 9-Oct-80 28.9900 10-Oct-80 28.9800 13-Oct-80 ND 14-Oct-80 29.1300 15-Oct-80 29.2100 16-Oct-80 29.3000 17-Oct-80 29.5300 20-Oct-80 29.7400 21-Oct-80 29.7900 22-Oct-80 29.8200 23-Oct-80 29.7900 24-Oct-80 29.8800 27-Oct-80 30.1200 28-Oct-80 30.3600 29-Oct-80 30.2100 30-Oct-80 30.4200 31-Oct-80 30.4500 3-Nov-80 30.6800 4-Nov-80 ND 5-Nov-80 31.1100 6-Nov-80 31.2000 7-Nov-80 31.3600 10-Nov-80 30.6200 11-Nov-80 ND 12-Nov-80 30.5200 13-Nov-80 30.3700 14-Nov-80 30.5700 17-Nov-80 31.0500 18-Nov-80 30.7800 19-Nov-80 30.5700 20-Nov-80 30.7800 21-Nov-80 30.7800 24-Nov-80 30.8300 25-Nov-80 30.7200 26-Nov-80 30.8900 27-Nov-80 ND 28-Nov-80 30.9700 1-Dec-80 31.1500 2-Dec-80 31.2300 3-Dec-80 31.1700 4-Dec-80 31.2200 5-Dec-80 31.5000 8-Dec-80 31.5400 9-Dec-80 31.8500 10-Dec-80 32.2900 11-Dec-80 32.4500 12-Dec-80 32.3000 15-Dec-80 31.9300 16-Dec-80 32.5100 17-Dec-80 32.0300 18-Dec-80 32.0300 19-Dec-80 31.8500 22-Dec-80 31.6800 23-Dec-80 31.3500 24-Dec-80 31.4000 25-Dec-80 ND 26-Dec-80 31.3600 29-Dec-80 31.5800 30-Dec-80 31.4300 31-Dec-80 31.7300 1-Jan-81 ND 2-Jan-81 31.7600 5-Jan-81 31.2100 6-Jan-81 31.1200 7-Jan-81 31.3700 8-Jan-81 31.5700 9-Jan-81 31.7600 12-Jan-81 31.9700 13-Jan-81 32.2100 14-Jan-81 32.0900 15-Jan-81 32.1800 16-Jan-81 32.2800 19-Jan-81 32.2900 20-Jan-81 32.2300 21-Jan-81 32.0400 22-Jan-81 32.5600 23-Jan-81 32.7200 26-Jan-81 32.9300 27-Jan-81 33.1800 28-Jan-81 33.4800 29-Jan-81 33.5500 30-Jan-81 34.1400 2-Feb-81 34.0200 3-Feb-81 34.2600 4-Feb-81 33.9300 5-Feb-81 34.4300 6-Feb-81 34.2900 9-Feb-81 34.3200 10-Feb-81 34.4900 11-Feb-81 34.5300 12-Feb-81 ND 13-Feb-81 35.6200 16-Feb-81 ND 17-Feb-81 35.3500 18-Feb-81 35.2000 19-Feb-81 34.4800 20-Feb-81 34.0000 23-Feb-81 34.2500 24-Feb-81 34.3500 25-Feb-81 34.3700 26-Feb-81 34.6500 27-Feb-81 34.8500 2-Mar-81 35.2300 3-Mar-81 35.4000 4-Mar-81 35.0000 5-Mar-81 35.0000 6-Mar-81 35.0000 9-Mar-81 34.7000 10-Mar-81 34.5000 11-Mar-81 34.7900 12-Mar-81 34.6600 13-Mar-81 34.6200 16-Mar-81 34.2800 17-Mar-81 34.2300 18-Mar-81 33.7400 19-Mar-81 33.5800 20-Mar-81 33.9200 23-Mar-81 34.2600 24-Mar-81 34.1300 25-Mar-81 34.1600 26-Mar-81 34.4800 27-Mar-81 34.7600 30-Mar-81 34.5000 31-Mar-81 34.7000 1-Apr-81 34.3800 2-Apr-81 34.5400 3-Apr-81 34.8900 6-Apr-81 35.2700 7-Apr-81 35.8700 8-Apr-81 34.9600 9-Apr-81 35.1300 10-Apr-81 35.2700 13-Apr-81 35.5600 14-Apr-81 35.4800 15-Apr-81 35.7300 16-Apr-81 35.8300 17-Apr-81 35.9000 20-Apr-81 35.8000 21-Apr-81 35.7100 22-Apr-81 35.3800 23-Apr-81 35.4600 24-Apr-81 35.4800 27-Apr-81 35.4900 28-Apr-81 35.6300 29-Apr-81 36.0000 30-Apr-81 35.9500 1-May-81 35.8600 4-May-81 36.5600 5-May-81 36.9600 6-May-81 36.8400 7-May-81 37.0700 8-May-81 36.7000 11-May-81 37.4000 12-May-81 37.5000 13-May-81 37.4200 14-May-81 37.9000 15-May-81 37.6500 18-May-81 37.4900 19-May-81 37.5000 20-May-81 37.4300 21-May-81 37.8100 22-May-81 37.7300 25-May-81 ND 26-May-81 38.0500 27-May-81 38.2900 28-May-81 37.8300 29-May-81 38.0700 1-Jun-81 38.0300 2-Jun-81 38.6100 3-Jun-81 38.5500 4-Jun-81 39.3300 5-Jun-81 39.3900 8-Jun-81 39.1800 9-Jun-81 39.2300 10-Jun-81 38.7600 11-Jun-81 39.2600 12-Jun-81 39.1300 15-Jun-81 38.5200 16-Jun-81 38.2600 17-Jun-81 38.3000 18-Jun-81 38.8000 19-Jun-81 38.9200 22-Jun-81 38.7200 23-Jun-81 38.5600 24-Jun-81 38.7600 25-Jun-81 39.0800 26-Jun-81 39.1500 29-Jun-81 39.2000 30-Jun-81 39.2500 1-Jul-81 39.5100 2-Jul-81 39.5100 3-Jul-81 39.5800 6-Jul-81 40.1100 7-Jul-81 40.0000 8-Jul-81 40.4300 9-Jul-81 40.4000 10-Jul-81 39.9600 13-Jul-81 39.7900 14-Jul-81 40.1400 15-Jul-81 39.5200 16-Jul-81 39.4900 17-Jul-81 39.8200 20-Jul-81 40.0700 21-Jul-81 40.3300 22-Jul-81 39.8500 23-Jul-81 40.0400 24-Jul-81 39.9700 27-Jul-81 39.7400 28-Jul-81 39.9000 29-Jul-81 40.2300 30-Jul-81 40.2500 31-Jul-81 40.4300 3-Aug-81 41.3100 4-Aug-81 41.4800 5-Aug-81 41.1100 6-Aug-81 41.3100 7-Aug-81 41.5300 10-Aug-81 42.0800 11-Aug-81 41.9400 12-Aug-81 41.0400 13-Aug-81 41.2600 14-Aug-81 41.4000 17-Aug-81 40.8800 18-Aug-81 40.6000 19-Aug-81 40.5800 20-Aug-81 40.1200 21-Aug-81 39.9000 24-Aug-81 40.1200 25-Aug-81 40.8300 26-Aug-81 40.3700 27-Aug-81 40.6100 28-Aug-81 40.1100 31-Aug-81 39.9500 1-Sep-81 40.2300 2-Sep-81 40.0300 3-Sep-81 39.8200 4-Sep-81 39.6300 7-Sep-81 ND 8-Sep-81 39.9500 9-Sep-81 39.8100 10-Sep-81 39.3800 11-Sep-81 39.3900 14-Sep-81 38.8200 15-Sep-81 38.2600 16-Sep-81 37.8000 17-Sep-81 37.3400 18-Sep-81 37.3400 21-Sep-81 36.4700 22-Sep-81 37.1700 23-Sep-81 37.4800 24-Sep-81 37.8500 25-Sep-81 38.2000 28-Sep-81 38.2100 29-Sep-81 37.7300 30-Sep-81 38.1300 1-Oct-81 38.0800 2-Oct-81 37.4400 5-Oct-81 37.0000 6-Oct-81 37.8900 7-Oct-81 37.1300 8-Oct-81 37.1100 9-Oct-81 37.0000 12-Oct-81 ND 13-Oct-81 37.1700 14-Oct-81 37.2800 15-Oct-81 37.4000 16-Oct-81 37.5500 19-Oct-81 37.4100 20-Oct-81 37.3700 21-Oct-81 37.9900 22-Oct-81 38.1200 23-Oct-81 38.0800 26-Oct-81 38.5600 27-Oct-81 38.4500 28-Oct-81 38.1500 29-Oct-81 38.0100 30-Oct-81 37.6800 2-Nov-81 37.0800 3-Nov-81 ND 4-Nov-81 37.1800 5-Nov-81 37.4300 6-Nov-81 37.4000 9-Nov-81 37.1600 10-Nov-81 37.5200 11-Nov-81 ND 12-Nov-81 37.1400 13-Nov-81 37.3100 16-Nov-81 37.4300 17-Nov-81 37.7600 18-Nov-81 37.4300 19-Nov-81 37.5500 20-Nov-81 37.8300 23-Nov-81 37.8500 24-Nov-81 37.4200 25-Nov-81 37.3800 26-Nov-81 ND 27-Nov-81 37.2800 30-Nov-81 37.4200 1-Dec-81 37.6000 2-Dec-81 37.7200 3-Dec-81 37.9500 4-Dec-81 37.9000 7-Dec-81 38.0800 8-Dec-81 38.2500 9-Dec-81 38.3300 10-Dec-81 38.6200 11-Dec-81 38.8600 14-Dec-81 38.8800 15-Dec-81 37.7700 16-Dec-81 37.8000 17-Dec-81 38.5000 18-Dec-81 38.5500 21-Dec-81 38.3000 22-Dec-81 38.2500 23-Dec-81 38.4000 24-Dec-81 38.6400 25-Dec-81 ND 28-Dec-81 38.4000 29-Dec-81 38.4600 30-Dec-81 38.9000 31-Dec-81 38.3500 1-Jan-82 ND 4-Jan-82 38.1600 5-Jan-82 38.5200 6-Jan-82 38.3300 7-Jan-82 38.4800 8-Jan-82 38.6000 11-Jan-82 38.8400 12-Jan-82 38.8700 13-Jan-82 38.8500 14-Jan-82 39.1400 15-Jan-82 39.3200 18-Jan-82 39.1200 19-Jan-82 39.0300 20-Jan-82 39.2500 21-Jan-82 39.0900 22-Jan-82 39.2500 25-Jan-82 39.6600 26-Jan-82 39.3800 27-Jan-82 39.3600 28-Jan-82 39.5600 29-Jan-82 39.7400 1-Feb-82 39.9300 2-Feb-82 40.0000 3-Feb-82 40.1800 4-Feb-82 39.8500 5-Feb-82 40.0400 8-Feb-82 40.1000 9-Feb-82 40.4500 10-Feb-82 40.3900 11-Feb-82 40.3700 12-Feb-82 ND 15-Feb-82 ND 16-Feb-82 40.8300 17-Feb-82 40.8400 18-Feb-82 40.3800 19-Feb-82 40.4200 22-Feb-82 42.7700 23-Feb-82 43.3700 24-Feb-82 43.5500 25-Feb-82 43.4000 26-Feb-82 43.7200 1-Mar-82 43.7900 2-Mar-82 43.7600 3-Mar-82 43.7200 4-Mar-82 43.7000 5-Mar-82 43.2300 8-Mar-82 43.3600 9-Mar-82 43.7600 10-Mar-82 43.7000 11-Mar-82 43.8600 12-Mar-82 43.9100 15-Mar-82 43.9600 16-Mar-82 44.1500 17-Mar-82 44.3000 18-Mar-82 44.7100 19-Mar-82 44.7000 22-Mar-82 45.2000 23-Mar-82 44.9500 24-Mar-82 44.8500 25-Mar-82 45.1700 26-Mar-82 45.1200 29-Mar-82 45.6400 30-Mar-82 45.5000 31-Mar-82 45.6900 1-Apr-82 45.3400 2-Apr-82 45.2900 5-Apr-82 45.5000 6-Apr-82 45.5700 7-Apr-82 45.6100 8-Apr-82 45.8500 9-Apr-82 45.8200 12-Apr-82 45.7000 13-Apr-82 45.5500 14-Apr-82 45.7200 15-Apr-82 45.8300 16-Apr-82 45.7600 19-Apr-82 45.5800 20-Apr-82 45.3300 21-Apr-82 45.4400 22-Apr-82 45.3000 23-Apr-82 45.1700 26-Apr-82 44.7600 27-Apr-82 44.5100 28-Apr-82 44.4700 29-Apr-82 44.2000 30-Apr-82 44.1200 3-May-82 44.0200 4-May-82 44.1300 5-May-82 43.7400 6-May-82 43.6000 7-May-82 43.3600 10-May-82 43.2400 11-May-82 43.1400 12-May-82 43.0900 13-May-82 43.3600 14-May-82 43.5600 17-May-82 43.4800 18-May-82 43.7400 19-May-82 43.8600 20-May-82 43.7600 21-May-82 43.4900 24-May-82 43.4300 25-May-82 43.6300 26-May-82 43.9500 27-May-82 44.3700 28-May-82 44.3700 31-May-82 ND 1-Jun-82 44.8700 2-Jun-82 44.8000 3-Jun-82 44.6600 4-Jun-82 44.6200 7-Jun-82 45.0100 8-Jun-82 45.4100 9-Jun-82 45.7200 10-Jun-82 45.5900 11-Jun-82 45.3500 14-Jun-82 46.1300 15-Jun-82 46.3200 16-Jun-82 46.4600 17-Jun-82 46.8600 18-Jun-82 46.9000 21-Jun-82 47.3000 22-Jun-82 46.9400 23-Jun-82 47.1800 24-Jun-82 47.1700 25-Jun-82 47.3900 28-Jun-82 47.4700 29-Jun-82 46.9100 30-Jun-82 46.9700 1-Jul-82 47.2200 2-Jul-82 47.3800 5-Jul-82 ND 6-Jul-82 47.5400 7-Jul-82 47.9700 8-Jul-82 48.0200 9-Jul-82 47.4100 12-Jul-82 47.0500 13-Jul-82 47.5000 14-Jul-82 47.4800 15-Jul-82 47.5300 16-Jul-82 47.1800 19-Jul-82 47.1400 20-Jul-82 46.6400 21-Jul-82 46.2100 22-Jul-82 46.4400 23-Jul-82 45.7000 26-Jul-82 45.9500 27-Jul-82 46.3700 28-Jul-82 46.8000 29-Jul-82 47.0600 30-Jul-82 47.0200 2-Aug-82 46.4900 3-Aug-82 46.6500 4-Aug-82 47.4300 5-Aug-82 47.4900 6-Aug-82 47.6900 9-Aug-82 48.0400 10-Aug-82 48.0000 11-Aug-82 48.1700 12-Aug-82 48.1000 13-Aug-82 48.1100 16-Aug-82 48.1400 17-Aug-82 47.9100 18-Aug-82 47.5400 19-Aug-82 47.6000 20-Aug-82 47.1500 23-Aug-82 47.0900 24-Aug-82 46.5000 25-Aug-82 46.7500 26-Aug-82 46.7800 27-Aug-82 47.3500 30-Aug-82 47.9000 31-Aug-82 47.7500 1-Sep-82 47.8200 2-Sep-82 47.5200 3-Sep-82 47.5600 6-Sep-82 ND 7-Sep-82 47.5500 8-Sep-82 47.8600 9-Sep-82 47.7500 10-Sep-82 48.2300 13-Sep-82 48.3500 14-Sep-82 48.2500 15-Sep-82 48.3300 16-Sep-82 48.2600 17-Sep-82 48.1400 20-Sep-82 48.1800 21-Sep-82 48.3100 22-Sep-82 48.2600 23-Sep-82 48.5100 24-Sep-82 48.6800 27-Sep-82 49.2000 28-Sep-82 49.3900 29-Sep-82 49.1100 30-Sep-82 49.0500 1-Oct-82 49.0400 4-Oct-82 49.5500 5-Oct-82 49.4800 6-Oct-82 49.4400 7-Oct-82 48.9100 8-Oct-82 49.1200 11-Oct-82 ND 12-Oct-82 48.3000 13-Oct-82 48.7200 14-Oct-82 48.8900 15-Oct-82 49.0000 18-Oct-82 48.8500 19-Oct-82 48.8100 20-Oct-82 48.9200 21-Oct-82 49.0700 22-Oct-82 49.0500 25-Oct-82 49.3900 26-Oct-82 49.3000 27-Oct-82 49.1700 28-Oct-82 49.5700 29-Oct-82 49.4800 1-Nov-82 49.3200 2-Nov-82 ND 3-Nov-82 49.4100 4-Nov-82 49.9100 5-Nov-82 49.9400 8-Nov-82 50.2200 9-Nov-82 49.9800 10-Nov-82 49.7900 11-Nov-82 ND 12-Nov-82 50.1400 15-Nov-82 50.0800 16-Nov-82 49.8100 17-Nov-82 49.9400 18-Nov-82 49.8000 19-Nov-82 49.4600 22-Nov-82 49.4400 23-Nov-82 49.7000 24-Nov-82 49.3000 25-Nov-82 ND 26-Nov-82 49.0000 29-Nov-82 48.7200 30-Nov-82 48.4400 1-Dec-82 48.5500 2-Dec-82 48.0700 3-Dec-82 47.6100 6-Dec-82 47.6600 7-Dec-82 47.6300 8-Dec-82 47.7700 9-Dec-82 48.1400 10-Dec-82 48.2500 13-Dec-82 48.4800 14-Dec-82 47.9000 15-Dec-82 48.1300 16-Dec-82 47.8500 17-Dec-82 47.6000 20-Dec-82 47.2200 21-Dec-82 47.1000 22-Dec-82 46.9600 23-Dec-82 46.9100 24-Dec-82 46.8400 27-Dec-82 46.4500 28-Dec-82 46.6500 29-Dec-82 46.7600 30-Dec-82 46.9200 31-Dec-82 46.9000 3-Jan-83 46.6600 4-Jan-83 46.4500 5-Jan-83 46.2000 6-Jan-83 46.2600 7-Jan-83 46.2500 10-Jan-83 45.8800 11-Jan-83 46.0400 12-Jan-83 46.4100 13-Jan-83 46.0500 14-Jan-83 46.2900 17-Jan-83 46.3100 18-Jan-83 46.9600 19-Jan-83 47.2200 20-Jan-83 47.4000 21-Jan-83 47.7500 24-Jan-83 48.0400 25-Jan-83 47.4400 26-Jan-83 47.6500 27-Jan-83 47.5500 28-Jan-83 47.6000 31-Jan-83 48.2500 1-Feb-83 48.1700 2-Feb-83 48.7700 3-Feb-83 48.2800 4-Feb-83 48.4600 7-Feb-83 48.0700 8-Feb-83 47.9400 9-Feb-83 47.7600 10-Feb-83 47.5100 11-Feb-83 47.4200 14-Feb-83 47.5100 15-Feb-83 47.3200 16-Feb-83 47.0000 17-Feb-83 47.2900 18-Feb-83 47.3400 21-Feb-83 ND 22-Feb-83 47.5400 23-Feb-83 47.7400 24-Feb-83 47.4300 25-Feb-83 47.6300 28-Feb-83 47.8700 1-Mar-83 48.1000 2-Mar-83 47.9000 3-Mar-83 47.8200 4-Mar-83 47.4200 7-Mar-83 47.1000 8-Mar-83 47.4000 9-Mar-83 47.6800 10-Mar-83 47.1300 11-Mar-83 47.8000 14-Mar-83 45.8000 15-Mar-83 46.4000 16-Mar-83 46.8500 17-Mar-83 47.1000 18-Mar-83 47.2000 21-Mar-83 47.5000 22-Mar-83 47.5400 23-Mar-83 47.7500 24-Mar-83 47.7700 25-Mar-83 47.8300 28-Mar-83 48.2000 29-Mar-83 48.2700 30-Mar-83 48.1300 31-Mar-83 48.2400 1-Apr-83 48.2500 4-Apr-83 47.9800 5-Apr-83 48.1200 6-Apr-83 47.9800 7-Apr-83 48.0500 8-Apr-83 48.2800 11-Apr-83 48.1900 12-Apr-83 48.3000 13-Apr-83 48.6300 14-Apr-83 48.6000 15-Apr-83 48.6000 18-Apr-83 49.0000 19-Apr-83 48.7600 20-Apr-83 49.0400 21-Apr-83 48.9400 22-Apr-83 48.7600 25-Apr-83 48.7200 26-Apr-83 48.8500 27-Apr-83 48.8000 28-Apr-83 49.1200 29-Apr-83 49.1400 2-May-83 49.0300 3-May-83 48.9500 4-May-83 48.8200 5-May-83 48.7600 6-May-83 48.7800 9-May-83 48.6800 10-May-83 48.8800 11-May-83 48.7000 12-May-83 48.7300 13-May-83 48.8000 16-May-83 49.1500 17-May-83 49.1600 18-May-83 49.1700 19-May-83 49.5000 20-May-83 49.4400 23-May-83 49.6500 24-May-83 49.6700 25-May-83 49.6500 26-May-83 49.8300 27-May-83 50.2000 30-May-83 ND 31-May-83 50.4700 1-Jun-83 50.8900 2-Jun-83 50.7300 3-Jun-83 50.7600 6-Jun-83 51.2600 7-Jun-83 51.2900 8-Jun-83 51.3000 9-Jun-83 51.3100 10-Jun-83 51.1400 13-Jun-83 50.9100 14-Jun-83 51.2200 15-Jun-83 51.2000 16-Jun-83 50.9200 17-Jun-83 50.9600 20-Jun-83 50.9100 21-Jun-83 50.9300 22-Jun-83 50.4500 23-Jun-83 50.5600 24-Jun-83 50.5100 27-Jun-83 50.5200 28-Jun-83 50.9000 29-Jun-83 50.9300 30-Jun-83 50.8200 1-Jul-83 50.8600 4-Jul-83 ND 5-Jul-83 51.4500 6-Jul-83 51.4500 7-Jul-83 51.6000 8-Jul-83 51.5800 11-Jul-83 51.7700 12-Jul-83 51.7800 13-Jul-83 51.7500 14-Jul-83 51.6100 15-Jul-83 52.0500 18-Jul-83 51.9500 19-Jul-83 51.9200 20-Jul-83 51.5700 21-Jul-83 51.6500 22-Jul-83 51.8300 25-Jul-83 52.1300 26-Jul-83 52.2400 27-Jul-83 52.4700 28-Jul-83 52.6600 29-Jul-83 52.9300 1-Aug-83 53.5900 2-Aug-83 53.2600 3-Aug-83 53.3100 4-Aug-83 53.3000 5-Aug-83 53.7700 8-Aug-83 53.9800 9-Aug-83 53.8700 10-Aug-83 54.5200 11-Aug-83 54.6800 12-Aug-83 54.5500 15-Aug-83 54.3200 16-Aug-83 53.4200 17-Aug-83 53.0300 18-Aug-83 52.8100 19-Aug-83 53.2500 22-Aug-83 52.8000 23-Aug-83 52.7500 24-Aug-83 53.0000 25-Aug-83 53.0400 26-Aug-83 53.6000 29-Aug-83 53.8500 30-Aug-83 54.0800 31-Aug-83 54.2300 1-Sep-83 54.1500 2-Sep-83 54.2200 5-Sep-83 ND 6-Sep-83 53.9300 7-Sep-83 54.0400 8-Sep-83 53.9000 9-Sep-83 53.7600 12-Sep-83 53.5200 13-Sep-83 54.0200 14-Sep-83 54.1800 15-Sep-83 54.0200 16-Sep-83 53.8500 19-Sep-83 53.7300 20-Sep-83 53.7900 21-Sep-83 53.8600 22-Sep-83 54.1400 23-Sep-83 53.6700 26-Sep-83 53.6000 27-Sep-83 53.7600 28-Sep-83 53.5800 29-Sep-83 53.5300 30-Sep-83 53.4000 3-Oct-83 53.2300 4-Oct-83 53.4400 5-Oct-83 52.9200 6-Oct-83 52.6100 7-Oct-83 52.3700 10-Oct-83 ND 11-Oct-83 52.7000 12-Oct-83 53.2200 13-Oct-83 53.0200 14-Oct-83 53.2800 17-Oct-83 53.0300 18-Oct-83 52.7300 19-Oct-83 52.8200 20-Oct-83 52.8200 21-Oct-83 52.7300 24-Oct-83 53.2600 25-Oct-83 53.0600 26-Oct-83 53.2800 27-Oct-83 53.3500 28-Oct-83 53.3300 31-Oct-83 53.4900 1-Nov-83 53.8600 2-Nov-83 53.7300 3-Nov-83 53.9200 4-Nov-83 54.1700 7-Nov-83 54.3900 8-Nov-83 ND 9-Nov-83 54.3100 10-Nov-83 54.0800 11-Nov-83 ND 14-Nov-83 54.3700 15-Nov-83 54.4000 16-Nov-83 54.6000 17-Nov-83 54.8400 18-Nov-83 54.9700 21-Nov-83 54.9400 22-Nov-83 54.7500 23-Nov-83 54.8300 24-Nov-83 ND 25-Nov-83 55.0400 28-Nov-83 55.0500 29-Nov-83 55.1400 30-Nov-83 54.8300 1-Dec-83 54.8500 2-Dec-83 55.0600 5-Dec-83 55.6400 6-Dec-83 55.3800 7-Dec-83 55.3800 8-Dec-83 55.4300 9-Dec-83 55.8400 12-Dec-83 55.9000 13-Dec-83 56.2400 14-Dec-83 56.2800 15-Dec-83 56.4100 16-Dec-83 56.6200 19-Dec-83 56.4600 20-Dec-83 56.3600 21-Dec-83 56.4200 22-Dec-83 56.3800 23-Dec-83 56.2200 26-Dec-83 ND 27-Dec-83 56.2300 28-Dec-83 56.1700 29-Dec-83 55.7500 30-Dec-83 55.7100 2-Jan-84 ND 3-Jan-84 56.3400 4-Jan-84 56.8600 5-Jan-84 57.0200 6-Jan-84 57.2000 9-Jan-84 57.6800 10-Jan-84 57.3200 11-Jan-84 57.9500 12-Jan-84 57.8500 13-Jan-84 57.2100 16-Jan-84 57.1200 17-Jan-84 57.3500 18-Jan-84 57.2400 19-Jan-84 56.9800 20-Jan-84 57.5700 23-Jan-84 57.3500 24-Jan-84 57.6600 25-Jan-84 57.6300 26-Jan-84 57.4200 27-Jan-84 57.6000 30-Jan-84 57.4600 31-Jan-84 57.6200 1-Feb-84 57.1500 2-Feb-84 56.5200 3-Feb-84 56.0900 6-Feb-84 56.1100 7-Feb-84 56.6400 8-Feb-84 56.4300 9-Feb-84 56.0800 10-Feb-84 56.1700 13-Feb-84 ND 14-Feb-84 55.8500 15-Feb-84 54.7800 16-Feb-84 54.8300 17-Feb-84 55.0000 20-Feb-84 ND 21-Feb-84 55.4600 22-Feb-84 54.5200 23-Feb-84 54.4800 24-Feb-84 53.8000 27-Feb-84 54.0100 28-Feb-84 53.3000 29-Feb-84 53.0800 1-Mar-84 53.4300 2-Mar-84 52.9400 5-Mar-84 52.6000 6-Mar-84 52.2700 7-Mar-84 52.3000 8-Mar-84 53.0100 9-Mar-84 52.8500 12-Mar-84 53.2500 13-Mar-84 52.6500 14-Mar-84 52.5000 15-Mar-84 52.9100 16-Mar-84 53.8500 19-Mar-84 53.7500 20-Mar-84 53.8500 21-Mar-84 54.1000 22-Mar-84 53.8400 23-Mar-84 53.7000 26-Mar-84 53.1800 27-Mar-84 52.9100 28-Mar-84 53.0300 29-Mar-84 52.9300 30-Mar-84 53.1300 2-Apr-84 53.1400 3-Apr-84 53.6000 4-Apr-84 53.5900 5-Apr-84 53.7900 6-Apr-84 53.6000 9-Apr-84 53.7800 10-Apr-84 53.5300 11-Apr-84 53.3500 12-Apr-84 53.5500 13-Apr-84 53.7000 16-Apr-84 53.9100 17-Apr-84 53.9900 18-Apr-84 54.0300 19-Apr-84 54.3700 20-Apr-84 54.4500 23-Apr-84 54.4000 24-Apr-84 54.8000 25-Apr-84 54.6000 26-Apr-84 54.9100 27-Apr-84 55.1200 30-Apr-84 55.4400 1-May-84 55.5900 2-May-84 55.4900 3-May-84 55.2200 4-May-84 55.4500 7-May-84 56.3500 8-May-84 56.5200 9-May-84 56.2500 10-May-84 56.5500 11-May-84 56.4800 14-May-84 56.1300 15-May-84 55.8600 16-May-84 55.8000 17-May-84 56.0300 18-May-84 56.4200 21-May-84 56.0000 22-May-84 55.8300 23-May-84 55.8500 24-May-84 55.6900 25-May-84 55.6400 28-May-84 ND 29-May-84 55.6900 30-May-84 55.7600 31-May-84 55.7500 1-Jun-84 54.8000 4-Jun-84 54.4700 5-Jun-84 54.8700 6-Jun-84 54.6100 7-Jun-84 55.0000 8-Jun-84 55.0500 11-Jun-84 55.3300 12-Jun-84 55.5900 13-Jun-84 55.4200 14-Jun-84 55.4600 15-Jun-84 55.8800 18-Jun-84 56.1700 19-Jun-84 56.1500 20-Jun-84 56.5600 21-Jun-84 56.6500 22-Jun-84 56.6200 25-Jun-84 57.0200 26-Jun-84 56.7000 27-Jun-84 56.9300 28-Jun-84 56.7200 29-Jun-84 56.6500 2-Jul-84 56.8000 3-Jul-84 57.3100 4-Jul-84 ND 5-Jul-84 57.4600 6-Jul-84 57.6300 9-Jul-84 57.6900 10-Jul-84 57.4000 11-Jul-84 57.5300 12-Jul-84 57.7800 13-Jul-84 57.4000 16-Jul-84 57.1900 17-Jul-84 57.6300 18-Jul-84 57.8100 19-Jul-84 57.5300 20-Jul-84 57.8400 23-Jul-84 58.2000 24-Jul-84 58.0000 25-Jul-84 57.6300 26-Jul-84 57.6300 27-Jul-84 58.3000 30-Jul-84 58.5600 31-Jul-84 58.6800 1-Aug-84 58.8900 2-Aug-84 58.4300 3-Aug-84 58.0500 6-Aug-84 58.3500 7-Aug-84 58.8700 8-Aug-84 58.7800 9-Aug-84 58.6200 10-Aug-84 58.5500 13-Aug-84 58.9000 14-Aug-84 58.2800 15-Aug-84 58.1300 16-Aug-84 57.7200 17-Aug-84 57.8500 20-Aug-84 58.1000 21-Aug-84 58.3000 22-Aug-84 58.1200 23-Aug-84 57.8000 24-Aug-84 58.0400 27-Aug-84 58.1700 28-Aug-84 58.0600 29-Aug-84 57.9900 30-Aug-84 58.2000 31-Aug-84 58.2800 3-Sep-84 ND 4-Sep-84 59.0700 5-Sep-84 59.5000 6-Sep-84 59.4200 7-Sep-84 60.0800 10-Sep-84 60.2600 11-Sep-84 60.3700 12-Sep-84 60.3100 13-Sep-84 61.0500 14-Sep-84 61.0000 17-Sep-84 61.8400 18-Sep-84 62.2100 19-Sep-84 62.3500 20-Sep-84 63.0500 21-Sep-84 62.5000 24-Sep-84 61.2500 25-Sep-84 62.1600 26-Sep-84 61.5500 27-Sep-84 61.3200 28-Sep-84 62.2200 1-Oct-84 62.0500 2-Oct-84 61.7400 3-Oct-84 61.2000 4-Oct-84 61.4500 5-Oct-84 61.7800 8-Oct-84 ND 9-Oct-84 62.4100 10-Oct-84 62.1300 11-Oct-84 62.5000 12-Oct-84 63.0100 15-Oct-84 63.4200 16-Oct-84 63.4000 17-Oct-84 63.0000 18-Oct-84 62.9700 19-Oct-84 62.1100 22-Oct-84 62.1600 23-Oct-84 61.6000 24-Oct-84 61.2200 25-Oct-84 60.9000 26-Oct-84 61.3200 29-Oct-84 62.0000 30-Oct-84 61.4500 31-Oct-84 61.2400 1-Nov-84 60.3800 2-Nov-84 59.5500 5-Nov-84 59.2500 6-Nov-84 ND 7-Nov-84 59.4500 8-Nov-84 59.5000 9-Nov-84 59.5800 12-Nov-84 ND 13-Nov-84 59.4900 14-Nov-84 59.9900 15-Nov-84 59.8500 16-Nov-84 59.9900 19-Nov-84 60.3500 20-Nov-84 60.5900 21-Nov-84 60.7900 22-Nov-84 ND 23-Nov-84 60.8000 26-Nov-84 61.6400 27-Nov-84 61.5600 28-Nov-84 61.8200 29-Nov-84 61.9500 30-Nov-84 62.5000 3-Dec-84 62.6300 4-Dec-84 61.8200 5-Dec-84 61.9300 6-Dec-84 61.6000 7-Dec-84 62.1800 10-Dec-84 62.2500 11-Dec-84 62.1500 12-Dec-84 62.0600 13-Dec-84 62.4300 14-Dec-84 62.1500 17-Dec-84 62.0700 18-Dec-84 61.9800 19-Dec-84 62.1500 20-Dec-84 62.7500 21-Dec-84 62.5500 24-Dec-84 62.6500 25-Dec-84 ND 26-Dec-84 62.7500 27-Dec-84 63.2200 28-Dec-84 63.0500 31-Dec-84 63.2300 1-Jan-85 ND 2-Jan-85 63.5800 3-Jan-85 63.2800 4-Jan-85 63.4100 7-Jan-85 63.5700 8-Jan-85 63.1700 9-Jan-85 63.3100 10-Jan-85 63.0000 11-Jan-85 63.1900 14-Jan-85 63.9200 15-Jan-85 63.7100 16-Jan-85 63.8300 17-Jan-85 63.7000 18-Jan-85 63.7400 21-Jan-85 ND 22-Jan-85 63.4600 23-Jan-85 63.6000 24-Jan-85 63.1300 25-Jan-85 63.3400 28-Jan-85 63.3200 29-Jan-85 63.5300 30-Jan-85 63.4200 31-Jan-85 63.3400 1-Feb-85 63.6700 4-Feb-85 64.2600 5-Feb-85 64.6000 6-Feb-85 64.5200 7-Feb-85 64.9700 8-Feb-85 65.2400 11-Feb-85 65.6800 12-Feb-85 ND 13-Feb-85 66.2500 14-Feb-85 66.1100 15-Feb-85 65.7500 18-Feb-85 ND 19-Feb-85 66.6300 20-Feb-85 67.0000 21-Feb-85 67.4600 22-Feb-85 68.1000 25-Feb-85 69.6000 26-Feb-85 69.1500 27-Feb-85 67.3000 28-Feb-85 67.3000 1-Mar-85 67.5000 4-Mar-85 67.8700 5-Mar-85 69.0400 6-Mar-85 68.0000 7-Mar-85 68.3200 8-Mar-85 68.6100 11-Mar-85 67.1700 12-Mar-85 67.3500 13-Mar-85 67.4600 14-Mar-85 68.0500 15-Mar-85 67.9000 18-Mar-85 67.1400 19-Mar-85 65.8500 20-Mar-85 65.6500 21-Mar-85 64.4500 22-Mar-85 64.8500 25-Mar-85 65.0700 26-Mar-85 64.5300 27-Mar-85 62.8500 28-Mar-85 62.9000 29-Mar-85 61.9000 1-Apr-85 62.8000 2-Apr-85 63.3300 3-Apr-85 62.8000 4-Apr-85 63.9500 5-Apr-85 63.8500 8-Apr-85 63.6500 9-Apr-85 63.3000 10-Apr-85 63.0500 11-Apr-85 61.8500 12-Apr-85 61.6000 15-Apr-85 61.0300 16-Apr-85 61.1000 17-Apr-85 61.1500 18-Apr-85 60.1500 19-Apr-85 60.1000 22-Apr-85 60.8200 23-Apr-85 61.9000 24-Apr-85 62.9000 25-Apr-85 63.4000 26-Apr-85 62.5000 29-Apr-85 62.6500 30-Apr-85 62.3500 1-May-85 63.3000 2-May-85 63.8000 3-May-85 64.8000 6-May-85 64.6000 7-May-85 63.6800 8-May-85 64.2500 9-May-85 62.6500 10-May-85 62.8300 13-May-85 61.8500 14-May-85 61.4000 15-May-85 61.9500 16-May-85 62.2000 17-May-85 61.7500 20-May-85 61.2100 21-May-85 61.7000 22-May-85 61.9500 23-May-85 62.2000 24-May-85 62.2500 27-May-85 ND 28-May-85 62.6600 29-May-85 61.9500 30-May-85 62.0500 31-May-85 61.5500 3-Jun-85 61.3000 4-Jun-85 61.5000 5-Jun-85 61.8600 6-Jun-85 61.6000 7-Jun-85 62.0600 10-Jun-85 62.5300 11-Jun-85 62.2500 12-Jun-85 62.3000 13-Jun-85 62.4400 14-Jun-85 61.6300 17-Jun-85 61.6900 18-Jun-85 61.0800 19-Jun-85 60.8300 20-Jun-85 62.0700 21-Jun-85 61.7800 24-Jun-85 61.9000 25-Jun-85 61.8500 26-Jun-85 61.3200 27-Jun-85 61.5000 28-Jun-85 60.9000 1-Jul-85 61.3000 2-Jul-85 61.3300 3-Jul-85 61.1000 4-Jul-85 ND 5-Jul-85 60.5800 8-Jul-85 60.2000 9-Jul-85 59.6800 10-Jul-85 59.3000 11-Jul-85 58.8000 12-Jul-85 58.2000 15-Jul-85 57.9400 16-Jul-85 58.0600 17-Jul-85 57.1100 18-Jul-85 57.8000 19-Jul-85 58.6000 22-Jul-85 58.3500 23-Jul-85 57.3800 24-Jul-85 58.1500 25-Jul-85 57.6900 26-Jul-85 57.7800 29-Jul-85 56.9500 30-Jul-85 56.9000 31-Jul-85 56.5700 1-Aug-85 57.0500 2-Aug-85 57.0500 5-Aug-85 57.1200 6-Aug-85 57.4000 7-Aug-85 57.3700 8-Aug-85 57.2200 9-Aug-85 57.2600 12-Aug-85 56.5700 13-Aug-85 56.4000 14-Aug-85 56.5700 15-Aug-85 56.1000 16-Aug-85 56.1000 19-Aug-85 56.0000 20-Aug-85 56.3500 21-Aug-85 56.0700 22-Aug-85 55.6500 23-Aug-85 55.7100 26-Aug-85 56.2000 27-Aug-85 56.5000 28-Aug-85 56.1000 29-Aug-85 56.2800 30-Aug-85 56.8800 2-Sep-85 ND 3-Sep-85 57.8400 4-Sep-85 57.5400 5-Sep-85 57.8300 6-Sep-85 59.1700 9-Sep-85 59.3500 10-Sep-85 59.3700 11-Sep-85 59.7600 12-Sep-85 59.3500 13-Sep-85 58.5800 16-Sep-85 58.2400 17-Sep-85 58.4500 18-Sep-85 58.6300 19-Sep-85 58.5800 20-Sep-85 57.5300 23-Sep-85 55.6500 24-Sep-85 55.0500 25-Sep-85 54.4000 26-Sep-85 54.0000 27-Sep-85 54.3000 30-Sep-85 54.2900 1-Oct-85 53.7200 2-Oct-85 53.7000 3-Oct-85 53.3500 4-Oct-85 53.4500 7-Oct-85 53.8000 8-Oct-85 53.7200 9-Oct-85 53.6400 10-Oct-85 53.9200 11-Oct-85 54.0000 14-Oct-85 ND 15-Oct-85 53.9000 16-Oct-85 54.3200 17-Oct-85 53.5900 18-Oct-85 53.4900 21-Oct-85 53.4000 22-Oct-85 53.5500 23-Oct-85 53.5000 24-Oct-85 53.7000 25-Oct-85 53.7900 28-Oct-85 53.5400 29-Oct-85 53.1500 30-Oct-85 53.2300 31-Oct-85 53.1400 1-Nov-85 52.7500 4-Nov-85 52.6200 5-Nov-85 52.6300 6-Nov-85 52.5600 7-Nov-85 53.0000 8-Nov-85 53.0800 11-Nov-85 ND 12-Nov-85 52.9500 13-Nov-85 52.8000 14-Nov-85 52.9000 15-Nov-85 53.0200 18-Nov-85 52.8500 19-Nov-85 52.4800 20-Nov-85 52.8000 21-Nov-85 52.3900 22-Nov-85 52.1500 25-Nov-85 51.9300 26-Nov-85 51.5600 27-Nov-85 51.4600 28-Nov-85 ND 29-Nov-85 51.0800 2-Dec-85 51.3800 3-Dec-85 51.4500 4-Dec-85 51.1600 5-Dec-85 51.3000 6-Dec-85 51.3800 9-Dec-85 51.5800 10-Dec-85 51.7100 11-Dec-85 51.9000 12-Dec-85 51.2500 13-Dec-85 51.5400 16-Dec-85 51.5500 17-Dec-85 51.2100 18-Dec-85 51.4900 19-Dec-85 51.5000 20-Dec-85 51.3800 23-Dec-85 51.2300 24-Dec-85 51.1500 25-Dec-85 ND 26-Dec-85 51.1500 27-Dec-85 50.5200 30-Dec-85 50.4000 31-Dec-85 50.0500 1-Jan-86 ND 2-Jan-86 49.9100 3-Jan-86 50.3500 6-Jan-86 50.0100 7-Jan-86 49.8700 8-Jan-86 49.9700 9-Jan-86 50.0500 10-Jan-86 50.1700 13-Jan-86 50.3500 14-Jan-86 50.4400 15-Jan-86 50.2900 16-Jan-86 50.3700 17-Jan-86 50.4000 20-Jan-86 ND 21-Jan-86 50.1400 22-Jan-86 50.0500 23-Jan-86 50.1600 24-Jan-86 49.5800 27-Jan-86 49.0500 28-Jan-86 49.0900 29-Jan-86 48.8700 30-Jan-86 48.7000 31-Jan-86 48.8800 3-Feb-86 49.2000 4-Feb-86 49.4500 5-Feb-86 48.8200 6-Feb-86 48.9700 7-Feb-86 49.2600 10-Feb-86 48.8200 11-Feb-86 48.6200 12-Feb-86 48.4400 13-Feb-86 48.1100 14-Feb-86 48.0300 17-Feb-86 ND 18-Feb-86 47.9500 19-Feb-86 47.3000 20-Feb-86 47.2300 21-Feb-86 47.2500 24-Feb-86 46.8100 25-Feb-86 46.0100 26-Feb-86 45.6100 27-Feb-86 45.5300 28-Feb-86 45.8000 3-Mar-86 45.6000 4-Mar-86 45.1000 5-Mar-86 46.3400 6-Mar-86 45.9900 7-Mar-86 45.8100 10-Mar-86 46.6800 11-Mar-86 46.4000 12-Mar-86 46.7500 13-Mar-86 47.0500 14-Mar-86 46.3800 17-Mar-86 46.0400 18-Mar-86 46.0300 19-Mar-86 46.3100 20-Mar-86 46.1800 21-Mar-86 45.9600 24-Mar-86 46.8300 25-Mar-86 47.9000 26-Mar-86 47.7800 27-Mar-86 47.6100 28-Mar-86 47.8500 31-Mar-86 48.0700 1-Apr-86 47.9000 2-Apr-86 48.4000 3-Apr-86 48.9800 4-Apr-86 49.8000 7-Apr-86 48.9000 8-Apr-86 47.7100 9-Apr-86 47.5400 10-Apr-86 47.2800 11-Apr-86 46.7600 14-Apr-86 46.9800 15-Apr-86 47.0200 16-Apr-86 45.6900 17-Apr-86 45.2000 18-Apr-86 45.4200 21-Apr-86 45.1700 22-Apr-86 44.9800 23-Apr-86 44.8300 24-Apr-86 44.9000 25-Apr-86 44.4200 28-Apr-86 44.1900 29-Apr-86 44.4200 30-Apr-86 44.1800 1-May-86 44.9600 2-May-86 45.0800 5-May-86 44.6100 6-May-86 45.0800 7-May-86 44.8500 8-May-86 44.7400 9-May-86 44.5000 12-May-86 44.4700 13-May-86 44.9000 14-May-86 44.7000 15-May-86 44.8800 16-May-86 45.1500 19-May-86 45.4100 20-May-86 45.7400 21-May-86 45.7700 22-May-86 46.5100 23-May-86 46.4600 26-May-86 ND 27-May-86 46.4800 28-May-86 46.5800 29-May-86 47.0800 30-May-86 47.4800 2-Jun-86 47.3900 3-Jun-86 46.4500 4-Jun-86 46.5000 5-Jun-86 45.7900 6-Jun-86 45.5000 9-Jun-86 45.6400 10-Jun-86 45.3200 11-Jun-86 45.2300 12-Jun-86 45.1300 13-Jun-86 45.1400 16-Jun-86 45.0100 17-Jun-86 45.7600 18-Jun-86 45.7600 19-Jun-86 45.6700 20-Jun-86 45.9200 23-Jun-86 45.9700 24-Jun-86 45.4000 25-Jun-86 45.2900 26-Jun-86 45.4200 27-Jun-86 45.0600 30-Jun-86 44.9400 1-Jul-86 44.5000 2-Jul-86 44.6800 3-Jul-86 44.5100 4-Jul-86 ND 7-Jul-86 44.7300 8-Jul-86 44.7500 9-Jul-86 44.9400 10-Jul-86 44.7500 11-Jul-86 45.0000 14-Jul-86 44.9200 15-Jul-86 44.6400 16-Jul-86 44.3300 17-Jul-86 44.3500 18-Jul-86 43.9900 21-Jul-86 43.7900 22-Jul-86 44.0900 23-Jul-86 44.0600 24-Jul-86 44.0900 25-Jul-86 44.2800 28-Jul-86 43.6300 29-Jul-86 43.6100 30-Jul-86 43.7100 31-Jul-86 43.3500 1-Aug-86 43.1800 4-Aug-86 43.1700 5-Aug-86 43.3100 6-Aug-86 43.1200 7-Aug-86 42.8300 8-Aug-86 42.8400 11-Aug-86 42.6900 12-Aug-86 43.0500 13-Aug-86 42.8500 14-Aug-86 42.6900 15-Aug-86 42.7200 18-Aug-86 42.9100 19-Aug-86 42.6400 20-Aug-86 42.4100 21-Aug-86 42.3200 22-Aug-86 42.3200 25-Aug-86 42.2900 26-Aug-86 42.4600 27-Aug-86 42.3700 28-Aug-86 42.4300 29-Aug-86 42.1300 1-Sep-86 ND 2-Sep-86 42.0900 3-Sep-86 41.9500 4-Sep-86 42.0400 5-Sep-86 42.4000 8-Sep-86 42.9100 9-Sep-86 42.6600 10-Sep-86 42.7000 11-Sep-86 43.3300 12-Sep-86 42.6800 15-Sep-86 42.4600 16-Sep-86 42.4300 17-Sep-86 42.0000 18-Sep-86 41.4000 19-Sep-86 41.6100 22-Sep-86 42.1400 23-Sep-86 42.5100 24-Sep-86 42.4100 25-Sep-86 42.3900 26-Sep-86 42.4300 29-Sep-86 42.0100 30-Sep-86 42.0600 1-Oct-86 41.9400 2-Oct-86 41.6300 3-Oct-86 41.4500 6-Oct-86 41.2700 7-Oct-86 41.4400 8-Oct-86 41.4600 9-Oct-86 41.6000 10-Oct-86 41.2400 13-Oct-86 ND 14-Oct-86 41.0400 15-Oct-86 41.1000 16-Oct-86 41.0600 17-Oct-86 41.0300 20-Oct-86 41.3100 21-Oct-86 41.3200 22-Oct-86 41.2300 23-Oct-86 41.4200 24-Oct-86 42.1200 27-Oct-86 42.5100 28-Oct-86 42.2100 29-Oct-86 42.1200 30-Oct-86 42.6300 31-Oct-86 42.8400 3-Nov-86 42.8500 4-Nov-86 42.7600 5-Nov-86 42.8400 6-Nov-86 42.7600 7-Nov-86 42.8800 10-Nov-86 42.4600 11-Nov-86 ND 12-Nov-86 42.0600 13-Nov-86 41.8200 14-Nov-86 41.7000 17-Nov-86 41.8500 18-Nov-86 41.8700 19-Nov-86 41.7400 20-Nov-86 41.7400 21-Nov-86 42.0300 24-Nov-86 41.9900 25-Nov-86 41.4400 26-Nov-86 41.4000 27-Nov-86 ND 28-Nov-86 41.0500 1-Dec-86 40.9300 2-Dec-86 41.0200 3-Dec-86 41.0500 4-Dec-86 41.4400 5-Dec-86 41.6300 8-Dec-86 41.8500 9-Dec-86 42.0300 10-Dec-86 41.8300 11-Dec-86 41.9500 12-Dec-86 42.0000 15-Dec-86 41.9800 16-Dec-86 41.9800 17-Dec-86 41.9600 18-Dec-86 41.8300 19-Dec-86 41.7600 22-Dec-86 41.2000 23-Dec-86 40.9100 24-Dec-86 41.1100 25-Dec-86 ND 26-Dec-86 40.8700 29-Dec-86 40.4700 30-Dec-86 40.5300 31-Dec-86 40.0500 1-Jan-87 ND 2-Jan-87 39.9300 5-Jan-87 40.1900 6-Jan-87 40.0500 7-Jan-87 40.1800 8-Jan-87 40.0300 9-Jan-87 39.9700 12-Jan-87 39.4000 13-Jan-87 38.8500 14-Jan-87 38.0000 15-Jan-87 38.1000 16-Jan-87 38.2500 19-Jan-87 ND 20-Jan-87 38.2200 21-Jan-87 38.3400 22-Jan-87 37.6500 23-Jan-87 37.8500 26-Jan-87 37.8500 27-Jan-87 37.4600 28-Jan-87 37.0500 29-Jan-87 37.0500 30-Jan-87 37.9000 2-Feb-87 37.4400 3-Feb-87 37.3500 4-Feb-87 37.5700 5-Feb-87 38.1000 6-Feb-87 38.3700 9-Feb-87 37.6500 10-Feb-87 37.2600 11-Feb-87 37.6200 12-Feb-87 37.8000 13-Feb-87 37.8900 16-Feb-87 ND 17-Feb-87 37.5900 18-Feb-87 37.9000 19-Feb-87 38.0900 20-Feb-87 37.9000 23-Feb-87 37.9300 24-Feb-87 38.0000 25-Feb-87 37.8800 26-Feb-87 37.8000 27-Feb-87 37.8500 2-Mar-87 37.9300 3-Mar-87 37.9800 4-Mar-87 38.0500 5-Mar-87 37.9500 6-Mar-87 38.1000 9-Mar-87 38.4800 10-Mar-87 38.4600 11-Mar-87 38.7700 12-Mar-87 38.5500 13-Mar-87 38.3900 16-Mar-87 38.0700 17-Mar-87 38.1200 18-Mar-87 38.0800 19-Mar-87 38.0300 20-Mar-87 37.9900 23-Mar-87 37.7300 24-Mar-87 37.7700 25-Mar-87 37.8500 26-Mar-87 37.8600 27-Mar-87 37.7700 30-Mar-87 37.3300 31-Mar-87 37.3700 1-Apr-87 37.7000 2-Apr-87 37.5300 3-Apr-87 37.8200 6-Apr-87 37.7700 7-Apr-87 37.7900 8-Apr-87 38.1000 9-Apr-87 37.8000 10-Apr-87 37.5000 13-Apr-87 37.4600 14-Apr-87 37.3600 15-Apr-87 37.5200 16-Apr-87 37.5400 17-Apr-87 37.6500 20-Apr-87 37.5700 21-Apr-87 37.6500 22-Apr-87 37.7800 23-Apr-87 37.5800 24-Apr-87 37.1400 27-Apr-87 37.0400 28-Apr-87 37.2900 29-Apr-87 37.2100 30-Apr-87 37.3500 1-May-87 37.0300 4-May-87 36.8200 5-May-87 36.7200 6-May-87 36.7400 7-May-87 36.9000 8-May-87 37.1000 11-May-87 37.3100 12-May-87 37.1100 13-May-87 37.1300 14-May-87 37.0300 15-May-87 36.9100 18-May-87 36.8800 19-May-87 36.9200 20-May-87 36.7700 21-May-87 36.8400 22-May-87 36.9000 25-May-87 ND 26-May-87 37.5000 27-May-87 37.6500 28-May-87 37.6800 29-May-87 37.8800 1-Jun-87 37.9800 2-Jun-87 37.5000 3-Jun-87 37.4500 4-Jun-87 37.6900 5-Jun-87 37.5900 8-Jun-87 37.4200 9-Jun-87 37.1400 10-Jun-87 37.2200 11-Jun-87 37.1800 12-Jun-87 37.5600 15-Jun-87 37.8400 16-Jun-87 37.8800 17-Jun-87 37.8500 18-Jun-87 37.8000 19-Jun-87 37.9400 22-Jun-87 38.1300 23-Jun-87 38.0500 24-Jun-87 37.8000 25-Jun-87 37.9100 26-Jun-87 37.8800 29-Jun-87 37.9600 30-Jun-87 37.8900 1-Jul-87 37.9700 2-Jul-87 38.0000 3-Jul-87 38.1600 6-Jul-87 38.1800 7-Jul-87 38.1500 8-Jul-87 38.2100 9-Jul-87 38.0700 10-Jul-87 38.2600 13-Jul-87 38.2400 14-Jul-87 38.3900 15-Jul-87 37.9700 16-Jul-87 38.0900 17-Jul-87 38.5200 20-Jul-87 38.6100 21-Jul-87 38.6700 22-Jul-87 38.6200 23-Jul-87 38.4800 24-Jul-87 38.4500 27-Jul-87 38.4700 28-Jul-87 38.5300 29-Jul-87 38.5000 30-Jul-87 38.4700 31-Jul-87 38.5700 3-Aug-87 38.6500 4-Aug-87 39.2200 5-Aug-87 38.9300 6-Aug-87 39.0700 7-Aug-87 39.1800 10-Aug-87 39.2900 11-Aug-87 39.4400 12-Aug-87 39.3300 13-Aug-87 39.1900 14-Aug-87 38.9000 17-Aug-87 38.9800 18-Aug-87 38.3200 19-Aug-87 38.2700 20-Aug-87 38.0300 21-Aug-87 37.7700 24-Aug-87 37.7400 25-Aug-87 37.9000 26-Aug-87 37.9400 27-Aug-87 37.6700 28-Aug-87 37.6400 31-Aug-87 37.6400 1-Sep-87 37.6900 2-Sep-87 37.4800 3-Sep-87 37.2400 4-Sep-87 37.3400 7-Sep-87 ND 8-Sep-87 37.2400 9-Sep-87 37.3600 10-Sep-87 37.5800 11-Sep-87 37.4000 14-Sep-87 37.7600 15-Sep-87 37.7000 16-Sep-87 37.6500 17-Sep-87 37.6600 18-Sep-87 37.4800 21-Sep-87 37.6800 22-Sep-87 37.7900 23-Sep-87 37.8100 24-Sep-87 37.8200 25-Sep-87 37.8000 28-Sep-87 37.8600 29-Sep-87 38.2000 30-Sep-87 38.2500 1-Oct-87 38.3600 2-Oct-87 38.2200 5-Oct-87 38.2600 6-Oct-87 38.0900 7-Oct-87 37.9200 8-Oct-87 37.8600 9-Oct-87 37.7100 12-Oct-87 ND 13-Oct-87 37.8700 14-Oct-87 37.6900 15-Oct-87 37.5300 16-Oct-87 37.5000 19-Oct-87 37.0600 20-Oct-87 37.6700 21-Oct-87 37.6900 22-Oct-87 37.8200 23-Oct-87 37.2600 26-Oct-87 37.0600 27-Oct-87 36.7700 28-Oct-87 36.5900 29-Oct-87 36.2500 30-Oct-87 36.2000 2-Nov-87 35.8700 3-Nov-87 35.8600 4-Nov-87 35.8000 5-Nov-87 34.9400 6-Nov-87 35.1500 9-Nov-87 34.7600 10-Nov-87 34.7500 11-Nov-87 ND 12-Nov-87 35.4000 13-Nov-87 35.3100 16-Nov-87 35.6200 17-Nov-87 35.4000 18-Nov-87 35.3300 19-Nov-87 35.2200 20-Nov-87 35.2200 23-Nov-87 34.9100 24-Nov-87 35.2800 25-Nov-87 34.8500 26-Nov-87 ND 27-Nov-87 34.6100 30-Nov-87 34.3400 1-Dec-87 34.5200 2-Dec-87 34.6200 3-Dec-87 34.7400 4-Dec-87 34.8600 7-Dec-87 34.9200 8-Dec-87 34.8800 9-Dec-87 34.8100 10-Dec-87 34.3000 11-Dec-87 34.2000 14-Dec-87 34.1800 15-Dec-87 34.1400 16-Dec-87 34.1300 17-Dec-87 33.9600 18-Dec-87 34.1600 21-Dec-87 34.1500 22-Dec-87 34.0500 23-Dec-87 34.2400 24-Dec-87 34.1000 25-Dec-87 ND 28-Dec-87 33.4500 29-Dec-87 33.4100 30-Dec-87 33.3700 31-Dec-87 32.9000 1-Jan-88 ND 4-Jan-88 33.2100 5-Jan-88 34.0400 6-Jan-88 34.5400 7-Jan-88 34.2800 8-Jan-88 34.5400 11-Jan-88 34.2700 12-Jan-88 34.2000 13-Jan-88 34.1600 14-Jan-88 34.2400 15-Jan-88 35.1200 18-Jan-88 ND 19-Jan-88 35.1000 20-Jan-88 34.6400 21-Jan-88 34.7900 22-Jan-88 35.0000 25-Jan-88 35.0200 26-Jan-88 34.9700 27-Jan-88 34.9400 28-Jan-88 34.8500 29-Jan-88 35.0400 1-Feb-88 35.3200 2-Feb-88 35.2000 3-Feb-88 35.3000 4-Feb-88 35.3500 5-Feb-88 35.5300 8-Feb-88 35.4600 9-Feb-88 35.5500 10-Feb-88 35.3600 11-Feb-88 35.3700 12-Feb-88 35.8300 15-Feb-88 ND 16-Feb-88 35.7400 17-Feb-88 35.6800 18-Feb-88 35.7800 19-Feb-88 35.7400 22-Feb-88 35.4600 23-Feb-88 35.3500 24-Feb-88 35.4200 25-Feb-88 35.4700 26-Feb-88 35.2600 29-Feb-88 35.3000 1-Mar-88 35.2700 2-Mar-88 35.4200 3-Mar-88 35.4500 4-Mar-88 35.3200 7-Mar-88 35.0500 8-Mar-88 34.9000 9-Mar-88 34.9000 10-Mar-88 34.8600 11-Mar-88 34.8000 14-Mar-88 34.8000 15-Mar-88 34.8400 16-Mar-88 34.9700 17-Mar-88 35.3500 18-Mar-88 35.4500 21-Mar-88 35.3700 22-Mar-88 35.4000 23-Mar-88 35.3800 24-Mar-88 35.1900 25-Mar-88 35.1100 28-Mar-88 34.7600 29-Mar-88 34.8200 30-Mar-88 34.8000 31-Mar-88 34.6800 1-Apr-88 34.6500 4-Apr-88 34.6300 5-Apr-88 34.9600 6-Apr-88 35.0100 7-Apr-88 35.1700 8-Apr-88 35.0200 11-Apr-88 35.2900 12-Apr-88 35.3100 13-Apr-88 35.4000 14-Apr-88 34.8200 15-Apr-88 34.7500 18-Apr-88 34.7000 19-Apr-88 34.8000 20-Apr-88 34.8200 21-Apr-88 34.8100 22-Apr-88 34.9600 25-Apr-88 35.1000 26-Apr-88 35.0300 27-Apr-88 35.0500 28-Apr-88 34.9000 29-Apr-88 35.0200 2-May-88 35.1000 3-May-88 35.0900 4-May-88 35.1500 5-May-88 35.1100 6-May-88 35.1700 9-May-88 35.1900 10-May-88 35.1200 11-May-88 35.0800 12-May-88 35.1200 13-May-88 35.2200 16-May-88 35.2700 17-May-88 35.5900 18-May-88 35.6200 19-May-88 35.5000 20-May-88 35.5600 23-May-88 35.5200 24-May-88 35.5100 25-May-88 35.5200 26-May-88 35.6100 27-May-88 35.8200 30-May-88 ND 31-May-88 36.1300 1-Jun-88 36.0600 2-Jun-88 36.0800 3-Jun-88 36.1200 6-Jun-88 35.9800 7-Jun-88 35.8800 8-Jun-88 35.9200 9-Jun-88 36.0000 10-Jun-88 35.9400 13-Jun-88 36.0900 14-Jun-88 36.5000 15-Jun-88 36.6600 16-Jun-88 36.7100 17-Jun-88 36.6800 20-Jun-88 36.8200 21-Jun-88 36.8200 22-Jun-88 37.2200 23-Jun-88 37.4100 24-Jun-88 38.0300 27-Jun-88 38.0800 28-Jun-88 37.8500 29-Jun-88 38.3300 30-Jun-88 38.1100 1-Jul-88 38.1100 4-Jul-88 ND 5-Jul-88 38.1900 6-Jul-88 38.1300 7-Jul-88 38.0500 8-Jul-88 38.4800 11-Jul-88 38.6700 12-Jul-88 38.4600 13-Jul-88 38.6900 14-Jul-88 38.6700 15-Jul-88 39.2500 18-Jul-88 39.4100 19-Jul-88 39.0100 20-Jul-88 38.7200 21-Jul-88 38.4600 22-Jul-88 38.2200 25-Jul-88 38.6000 26-Jul-88 38.9100 27-Jul-88 38.6900 28-Jul-88 39.0200 29-Jul-88 39.2400 1-Aug-88 39.3000 2-Aug-88 39.2800 3-Aug-88 39.2200 4-Aug-88 39.3500 5-Aug-88 39.6600 8-Aug-88 39.8400 9-Aug-88 40.0800 10-Aug-88 40.1200 11-Aug-88 39.8400 12-Aug-88 39.4300 15-Aug-88 39.4600 16-Aug-88 39.2000 17-Aug-88 40.1000 18-Aug-88 39.8400 19-Aug-88 39.6800 22-Aug-88 40.2400 23-Aug-88 39.9700 24-Aug-88 39.6500 25-Aug-88 39.0200 26-Aug-88 38.9600 29-Aug-88 39.1600 30-Aug-88 39.1600 31-Aug-88 39.3900 1-Sep-88 39.3500 2-Sep-88 38.9800 5-Sep-88 ND 6-Sep-88 38.6400 7-Sep-88 38.6900 8-Sep-88 38.7900 9-Sep-88 38.8000 12-Sep-88 38.7100 13-Sep-88 38.8000 14-Sep-88 39.4200 15-Sep-88 39.3200 16-Sep-88 39.3600 19-Sep-88 39.2200 20-Sep-88 39.1200 21-Sep-88 39.3100 22-Sep-88 39.3800 23-Sep-88 39.3200 26-Sep-88 39.4700 27-Sep-88 39.3800 28-Sep-88 39.3800 29-Sep-88 39.4600 30-Sep-88 39.2300 3-Oct-88 39.0000 4-Oct-88 39.0100 5-Oct-88 39.0400 6-Oct-88 39.0900 7-Oct-88 39.0100 10-Oct-88 ND 11-Oct-88 38.8100 12-Oct-88 38.4700 13-Oct-88 38.1500 14-Oct-88 38.0500 17-Oct-88 37.9800 18-Oct-88 37.8300 19-Oct-88 37.9000 20-Oct-88 37.7800 21-Oct-88 37.3400 24-Oct-88 37.5000 25-Oct-88 37.4700 26-Oct-88 37.2100 27-Oct-88 37.2400 28-Oct-88 37.2700 31-Oct-88 37.3900 1-Nov-88 37.4900 2-Nov-88 37.3200 3-Nov-88 37.1700 4-Nov-88 37.6500 7-Nov-88 37.3800 8-Nov-88 37.5300 9-Nov-88 36.9500 10-Nov-88 36.8700 11-Nov-88 ND 14-Nov-88 36.5800 15-Nov-88 36.5700 16-Nov-88 36.1600 17-Nov-88 36.2600 18-Nov-88 36.4000 21-Nov-88 36.1800 22-Nov-88 36.0600 23-Nov-88 35.9600 24-Nov-88 ND 25-Nov-88 35.9300 28-Nov-88 36.3600 29-Nov-88 36.2000 30-Nov-88 36.3800 1-Dec-88 36.3100 2-Dec-88 36.2400 5-Dec-88 36.1300 6-Dec-88 36.3000 7-Dec-88 36.8900 8-Dec-88 36.5200 9-Dec-88 36.3200 12-Dec-88 36.5000 13-Dec-88 36.6400 14-Dec-88 36.4500 15-Dec-88 36.5700 16-Dec-88 37.0200 19-Dec-88 36.9600 20-Dec-88 37.2100 21-Dec-88 37.0700 22-Dec-88 37.2000 23-Dec-88 37.2400 26-Dec-88 ND 27-Dec-88 37.2800 28-Dec-88 37.5400 29-Dec-88 37.5000 30-Dec-88 37.2300 2-Jan-89 ND 3-Jan-89 36.9900 4-Jan-89 37.4700 5-Jan-89 37.6200 6-Jan-89 38.0300 9-Jan-89 38.3000 10-Jan-89 38.4200 11-Jan-89 38.2500 12-Jan-89 38.2400 13-Jan-89 38.3800 16-Jan-89 ND 17-Jan-89 38.7700 18-Jan-89 39.1700 19-Jan-89 39.0800 20-Jan-89 38.6100 23-Jan-89 38.4800 24-Jan-89 38.5800 25-Jan-89 38.5900 26-Jan-89 38.5900 27-Jan-89 38.9800 30-Jan-89 38.9500 31-Jan-89 39.3200 1-Feb-89 39.0500 2-Feb-89 39.1900 3-Feb-89 39.4300 6-Feb-89 39.3400 7-Feb-89 39.1000 8-Feb-89 39.2800 9-Feb-89 38.9400 10-Feb-89 38.9900 13-Feb-89 39.2000 14-Feb-89 38.7900 15-Feb-89 38.6100 16-Feb-89 38.6200 17-Feb-89 38.5400 20-Feb-89 ND 21-Feb-89 38.6300 22-Feb-89 38.5200 23-Feb-89 38.2100 24-Feb-89 38.2500 27-Feb-89 38.1500 28-Feb-89 38.2100 1-Mar-89 38.5000 2-Mar-89 38.6300 3-Mar-89 38.6000 6-Mar-89 38.8500 7-Mar-89 38.8200 8-Mar-89 38.9000 9-Mar-89 39.0100 10-Mar-89 39.0500 13-Mar-89 39.1000 14-Mar-89 38.9100 15-Mar-89 39.1300 16-Mar-89 39.2000 17-Mar-89 39.2900 20-Mar-89 39.2800 21-Mar-89 39.2100 22-Mar-89 39.1500 23-Mar-89 39.1800 24-Mar-89 39.2500 27-Mar-89 39.4200 28-Mar-89 39.6700 29-Mar-89 39.5900 30-Mar-89 39.7200 31-Mar-89 39.6800 3-Apr-89 39.4100 4-Apr-89 39.1700 5-Apr-89 39.2000 6-Apr-89 39.1300 7-Apr-89 39.2700 10-Apr-89 39.3600 11-Apr-89 39.4900 12-Apr-89 39.5200 13-Apr-89 39.2400 14-Apr-89 39.1600 17-Apr-89 38.8700 18-Apr-89 38.8100 19-Apr-89 38.9800 20-Apr-89 38.6400 21-Apr-89 38.6800 24-Apr-89 38.9900 25-Apr-89 39.0800 26-Apr-89 39.3300 27-Apr-89 39.2800 28-Apr-89 39.3500 1-May-89 39.5800 2-May-89 39.5000 3-May-89 39.5600 4-May-89 39.5200 5-May-89 39.7400 8-May-89 39.8600 9-May-89 40.0900 10-May-89 39.8600 11-May-89 40.0500 12-May-89 40.1700 15-May-89 40.6500 16-May-89 40.6500 17-May-89 41.2900 18-May-89 41.1400 19-May-89 41.1700 22-May-89 42.0600 23-May-89 42.0400 24-May-89 42.1400 25-May-89 41.7500 26-May-89 41.6400 29-May-89 ND 30-May-89 42.0800 31-May-89 41.3600 1-Jun-89 41.5400 2-Jun-89 41.0100 5-Jun-89 41.1000 6-Jun-89 41.4000 7-Jun-89 41.1100 8-Jun-89 41.4000 9-Jun-89 41.9600 12-Jun-89 42.4000 13-Jun-89 42.4300 14-Jun-89 42.4600 15-Jun-89 42.3500 16-Jun-89 41.6800 19-Jun-89 41.3100 20-Jun-89 41.4100 21-Jun-89 41.1800 22-Jun-89 41.0300 23-Jun-89 40.5700 26-Jun-89 40.9500 27-Jun-89 40.9100 28-Jun-89 41.0800 29-Jun-89 40.8900 30-Jun-89 40.9300 3-Jul-89 40.4100 4-Jul-89 ND 5-Jul-89 39.5700 6-Jul-89 39.5200 7-Jul-89 39.4500 10-Jul-89 38.9200 11-Jul-89 39.3400 12-Jul-89 39.2600 13-Jul-89 39.4000 14-Jul-89 39.8400 17-Jul-89 39.9400 18-Jul-89 39.5600 19-Jul-89 39.8000 20-Jul-89 39.7500 21-Jul-89 39.8900 24-Jul-89 39.9500 25-Jul-89 39.6500 26-Jul-89 39.2300 27-Jul-89 39.1300 28-Jul-89 39.5300 31-Jul-89 39.0500 1-Aug-89 39.0500 2-Aug-89 38.8000 3-Aug-89 39.0200 4-Aug-89 39.7500 7-Aug-89 39.8800 8-Aug-89 39.6000 9-Aug-89 39.7400 10-Aug-89 39.6200 11-Aug-89 40.5900 14-Aug-89 40.6300 15-Aug-89 40.6800 16-Aug-89 40.6600 17-Aug-89 41.1600 18-Aug-89 40.8900 21-Aug-89 40.8500 22-Aug-89 40.6100 23-Aug-89 40.8800 24-Aug-89 40.9200 25-Aug-89 40.8500 28-Aug-89 40.8900 29-Aug-89 40.4700 30-Aug-89 40.7000 31-Aug-89 40.8900 1-Sep-89 41.4200 4-Sep-89 ND 5-Sep-89 41.6000 6-Sep-89 41.3300 7-Sep-89 41.5100 8-Sep-89 41.3700 11-Sep-89 41.5300 12-Sep-89 41.5900 13-Sep-89 41.4300 14-Sep-89 41.1800 15-Sep-89 41.8100 18-Sep-89 40.8900 19-Sep-89 40.8800 20-Sep-89 40.6400 21-Sep-89 40.7100 22-Sep-89 40.8300 25-Sep-89 39.9100 26-Sep-89 39.6300 27-Sep-89 39.5000 28-Sep-89 39.4900 29-Sep-89 39.5600 2-Oct-89 39.3600 3-Oct-89 39.6500 4-Oct-89 39.4000 5-Oct-89 39.6000 6-Oct-89 39.7600 9-Oct-89 ND 10-Oct-89 39.8900 11-Oct-89 40.3400 12-Oct-89 40.0400 13-Oct-89 39.7500 16-Oct-89 39.1200 17-Oct-89 38.9200 18-Oct-89 38.9600 19-Oct-89 38.8700 20-Oct-89 38.9800 23-Oct-89 38.9500 24-Oct-89 38.6400 25-Oct-89 38.6500 26-Oct-89 38.6400 27-Oct-89 38.3900 30-Oct-89 38.5700 31-Oct-89 38.6600 1-Nov-89 38.5900 2-Nov-89 38.7900 3-Nov-89 38.7900 6-Nov-89 38.8700 7-Nov-89 38.6800 8-Nov-89 38.6900 9-Nov-89 38.7800 10-Nov-89 39.0600 13-Nov-89 39.0500 14-Nov-89 38.7200 15-Nov-89 38.5600 16-Nov-89 38.5200 17-Nov-89 38.6400 20-Nov-89 38.5200 21-Nov-89 38.2000 22-Nov-89 38.0900 23-Nov-89 ND 24-Nov-89 37.9200 27-Nov-89 37.6200 28-Nov-89 37.5900 29-Nov-89 37.4000 30-Nov-89 37.3800 1-Dec-89 37.4300 4-Dec-89 37.3900 5-Dec-89 37.3500 6-Dec-89 37.0700 7-Dec-89 37.2300 8-Dec-89 37.2500 11-Dec-89 37.1100 12-Dec-89 36.4000 13-Dec-89 36.6100 14-Dec-89 36.5200 15-Dec-89 36.2400 18-Dec-89 36.3200 19-Dec-89 36.4200 20-Dec-89 36.6000 21-Dec-89 36.3200 22-Dec-89 35.9700 25-Dec-89 ND 26-Dec-89 35.9000 27-Dec-89 35.5800 28-Dec-89 35.5600 29-Dec-89 35.6100