JAPAN -- SPOT EXCHANGE RATE, YEN/US$ ------------------------------------ 4-Jan-71 357.7300 5-Jan-71 357.8100 6-Jan-71 357.8600 7-Jan-71 357.8700 8-Jan-71 357.8200 11-Jan-71 357.9500 12-Jan-71 358.0600 13-Jan-71 358.4400 14-Jan-71 358.4000 15-Jan-71 358.4000 18-Jan-71 358.2900 19-Jan-71 358.3500 20-Jan-71 358.4000 21-Jan-71 358.2700 22-Jan-71 357.9000 25-Jan-71 357.7300 26-Jan-71 357.7800 27-Jan-71 357.7900 28-Jan-71 357.8300 29-Jan-71 357.7200 1-Feb-71 357.6700 2-Feb-71 357.5500 3-Feb-71 357.5400 4-Feb-71 357.5100 5-Feb-71 357.5300 8-Feb-71 357.4900 9-Feb-71 357.5000 10-Feb-71 357.5000 11-Feb-71 357.5000 12-Feb-71 ND 15-Feb-71 ND 16-Feb-71 357.5300 17-Feb-71 357.5300 18-Feb-71 357.5300 19-Feb-71 357.5600 22-Feb-71 357.6000 23-Feb-71 357.5500 24-Feb-71 357.6000 25-Feb-71 357.5600 26-Feb-71 357.5600 1-Mar-71 357.6300 2-Mar-71 357.5600 3-Mar-71 357.4900 4-Mar-71 357.4500 5-Mar-71 357.5900 8-Mar-71 357.5500 9-Mar-71 357.4600 10-Mar-71 357.5900 11-Mar-71 357.5600 12-Mar-71 357.5800 15-Mar-71 357.5400 16-Mar-71 357.4900 17-Mar-71 357.5300 18-Mar-71 357.5600 19-Mar-71 357.5600 22-Mar-71 357.4400 23-Mar-71 357.5300 24-Mar-71 357.5300 25-Mar-71 357.4700 26-Mar-71 357.4700 29-Mar-71 357.4400 30-Mar-71 357.4900 31-Mar-71 357.4200 1-Apr-71 357.4900 2-Apr-71 357.5300 5-Apr-71 357.5000 6-Apr-71 357.4600 7-Apr-71 357.5500 8-Apr-71 357.5500 9-Apr-71 357.5000 12-Apr-71 357.5000 13-Apr-71 357.6200 14-Apr-71 357.5800 15-Apr-71 357.5000 16-Apr-71 357.5400 19-Apr-71 357.4900 20-Apr-71 357.4900 21-Apr-71 357.4900 22-Apr-71 357.4900 23-Apr-71 357.4900 26-Apr-71 357.5000 27-Apr-71 357.4900 28-Apr-71 357.5000 29-Apr-71 357.4100 30-Apr-71 357.4000 3-May-71 357.4100 4-May-71 357.4000 5-May-71 357.4000 6-May-71 357.4100 7-May-71 357.4100 10-May-71 357.1400 11-May-71 357.4400 12-May-71 357.5300 13-May-71 357.4900 14-May-71 357.4900 17-May-71 357.4000 18-May-71 357.4400 19-May-71 357.4000 20-May-71 357.4600 21-May-71 357.4000 24-May-71 357.4000 25-May-71 357.4000 26-May-71 357.4400 27-May-71 357.4000 28-May-71 357.4000 31-May-71 ND 1-Jun-71 357.4600 2-Jun-71 357.4000 3-Jun-71 357.4600 4-Jun-71 357.4000 7-Jun-71 357.4000 8-Jun-71 357.4000 9-Jun-71 357.4000 10-Jun-71 357.4000 11-Jun-71 357.4000 14-Jun-71 357.4000 15-Jun-71 357.4600 16-Jun-71 357.4600 17-Jun-71 357.4600 18-Jun-71 357.4000 21-Jun-71 357.4000 22-Jun-71 357.4000 23-Jun-71 357.4000 24-Jun-71 357.4000 25-Jun-71 357.4000 28-Jun-71 357.3700 29-Jun-71 357.3900 30-Jun-71 357.4000 1-Jul-71 357.4000 2-Jul-71 357.4000 5-Jul-71 ND 6-Jul-71 357.4500 7-Jul-71 357.4600 8-Jul-71 357.4600 9-Jul-71 357.4000 12-Jul-71 357.4100 13-Jul-71 357.4400 14-Jul-71 357.4000 15-Jul-71 357.4000 16-Jul-71 357.4000 19-Jul-71 357.3900 20-Jul-71 357.3900 21-Jul-71 357.4000 22-Jul-71 357.3700 23-Jul-71 357.3600 26-Jul-71 357.4000 27-Jul-71 357.3700 28-Jul-71 357.4000 29-Jul-71 357.4000 30-Jul-71 357.3900 2-Aug-71 357.4100 3-Aug-71 357.3700 4-Aug-71 357.3700 5-Aug-71 357.3700 6-Aug-71 357.3700 9-Aug-71 357.3500 10-Aug-71 357.3900 11-Aug-71 357.3500 12-Aug-71 357.4000 13-Aug-71 357.3500 16-Aug-71 ND 17-Aug-71 ND 18-Aug-71 ND 19-Aug-71 ND 20-Aug-71 ND 23-Aug-71 ND 24-Aug-71 ND 25-Aug-71 ND 26-Aug-71 ND 27-Aug-71 ND 30-Aug-71 ND 31-Aug-71 339.8500 1-Sep-71 341.0100 2-Sep-71 338.9800 3-Sep-71 340.1400 6-Sep-71 ND 7-Sep-71 339.7900 8-Sep-71 339.3900 9-Sep-71 339.0700 10-Sep-71 338.8100 13-Sep-71 338.9800 14-Sep-71 338.2400 15-Sep-71 338.4100 16-Sep-71 337.8400 17-Sep-71 337.9500 20-Sep-71 337.2700 21-Sep-71 337.3400 22-Sep-71 337.4400 23-Sep-71 337.2700 24-Sep-71 336.9800 27-Sep-71 336.2500 28-Sep-71 336.3600 29-Sep-71 335.5700 30-Sep-71 335.3500 1-Oct-71 333.3900 4-Oct-71 333.1700 5-Oct-71 333.1400 6-Oct-71 332.6500 7-Oct-71 332.6100 8-Oct-71 332.3700 11-Oct-71 ND 12-Oct-71 330.5200 13-Oct-71 331.4000 14-Oct-71 330.8500 15-Oct-71 330.5800 18-Oct-71 329.6000 19-Oct-71 330.8500 20-Oct-71 331.0700 21-Oct-71 330.7900 22-Oct-71 330.3600 25-Oct-71 ND 26-Oct-71 329.0000 27-Oct-71 329.5400 28-Oct-71 329.7100 29-Oct-71 329.5000 1-Nov-71 329.4500 2-Nov-71 ND 3-Nov-71 329.5000 4-Nov-71 330.8700 5-Nov-71 329.1600 8-Nov-71 329.2200 9-Nov-71 329.1600 10-Nov-71 329.1100 11-Nov-71 329.1100 12-Nov-71 329.4900 15-Nov-71 328.7300 16-Nov-71 328.6200 17-Nov-71 328.8000 18-Nov-71 328.6800 19-Nov-71 328.4000 22-Nov-71 328.4100 23-Nov-71 328.1900 24-Nov-71 328.0400 25-Nov-71 ND 26-Nov-71 327.6000 29-Nov-71 327.0600 30-Nov-71 327.4400 1-Dec-71 327.6000 2-Dec-71 326.0000 3-Dec-71 325.1000 6-Dec-71 326.5300 7-Dec-71 323.6200 8-Dec-71 323.5000 9-Dec-71 323.5200 10-Dec-71 323.1000 13-Dec-71 322.7900 14-Dec-71 322.5800 15-Dec-71 321.5400 16-Dec-71 320.0000 17-Dec-71 320.3600 20-Dec-71 ND 21-Dec-71 314.9800 22-Dec-71 314.9600 23-Dec-71 315.0100 24-Dec-71 315.2100 27-Dec-71 314.9600 28-Dec-71 315.0100 29-Dec-71 315.2100 30-Dec-71 315.0100 31-Dec-71 315.0100 3-Jan-72 314.8600 4-Jan-72 314.9600 5-Jan-72 314.8600 6-Jan-72 312.0100 7-Jan-72 312.5000 10-Jan-72 312.9900 11-Jan-72 314.4700 12-Jan-72 313.4800 13-Jan-72 313.9700 14-Jan-72 312.9900 17-Jan-72 313.3800 18-Jan-72 312.8900 19-Jan-72 312.7900 20-Jan-72 312.0100 21-Jan-72 312.3000 24-Jan-72 312.2100 25-Jan-72 311.8200 26-Jan-72 311.5300 27-Jan-72 310.0800 28-Jan-72 310.4600 31-Jan-72 310.5600 1-Feb-72 310.3700 2-Feb-72 308.5500 3-Feb-72 309.1200 4-Feb-72 308.6400 7-Feb-72 308.1700 8-Feb-72 307.6900 9-Feb-72 304.7900 10-Feb-72 304.6900 11-Feb-72 304.6900 14-Feb-72 304.2300 15-Feb-72 304.1400 16-Feb-72 303.9500 17-Feb-72 303.9500 18-Feb-72 303.4900 21-Feb-72 ND 22-Feb-72 302.8500 23-Feb-72 302.4800 24-Feb-72 302.1100 25-Feb-72 302.4800 28-Feb-72 303.9500 29-Feb-72 303.4000 1-Mar-72 303.2100 2-Mar-72 303.0300 3-Mar-72 302.6600 6-Mar-72 302.7500 7-Mar-72 302.3000 8-Mar-72 302.0200 9-Mar-72 301.6600 10-Mar-72 301.9300 13-Mar-72 302.3000 14-Mar-72 302.2100 15-Mar-72 302.1100 16-Mar-72 302.0200 17-Mar-72 302.1100 20-Mar-72 302.3000 21-Mar-72 302.1100 22-Mar-72 302.1100 23-Mar-72 301.9300 24-Mar-72 302.3000 27-Mar-72 302.5700 28-Mar-72 302.8500 29-Mar-72 303.7700 30-Mar-72 303.7700 31-Mar-72 304.3200 3-Apr-72 304.1400 4-Apr-72 304.9700 5-Apr-72 305.1600 6-Apr-72 304.8800 7-Apr-72 303.2100 10-Apr-72 302.1100 11-Apr-72 302.3000 12-Apr-72 302.4300 13-Apr-72 302.5700 14-Apr-72 302.9400 17-Apr-72 302.5700 18-Apr-72 302.3900 19-Apr-72 302.9400 20-Apr-72 303.0300 21-Apr-72 303.2100 24-Apr-72 305.1600 25-Apr-72 304.3200 26-Apr-72 303.7700 27-Apr-72 304.2300 28-Apr-72 304.8800 1-May-72 304.4100 2-May-72 304.2300 3-May-72 304.3200 4-May-72 304.2300 5-May-72 304.3200 8-May-72 305.0600 9-May-72 304.9700 10-May-72 303.7700 11-May-72 303.5800 12-May-72 303.8600 15-May-72 304.3200 16-May-72 304.4100 17-May-72 304.5100 18-May-72 304.6000 19-May-72 304.0400 22-May-72 304.4100 23-May-72 304.2300 24-May-72 304.3200 25-May-72 304.3200 26-May-72 304.4100 29-May-72 ND 30-May-72 305.3400 31-May-72 304.6900 1-Jun-72 304.4100 2-Jun-72 304.2300 5-Jun-72 304.6900 6-Jun-72 304.5100 7-Jun-72 304.4100 8-Jun-72 304.3200 9-Jun-72 304.2300 12-Jun-72 304.5100 13-Jun-72 304.0400 14-Jun-72 303.9500 15-Jun-72 304.0400 16-Jun-72 303.9500 19-Jun-72 303.8600 20-Jun-72 303.4000 21-Jun-72 302.9400 22-Jun-72 302.0700 23-Jun-72 294.1200 26-Jun-72 298.5100 27-Jun-72 298.5100 28-Jun-72 296.7400 29-Jun-72 300.7500 30-Jun-72 300.9300 3-Jul-72 300.8400 4-Jul-72 ND 5-Jul-72 300.0300 6-Jul-72 300.5700 7-Jul-72 300.9300 10-Jul-72 301.3000 11-Jul-72 301.5700 12-Jul-72 301.2000 13-Jul-72 301.0200 14-Jul-72 301.2000 17-Jul-72 301.0200 18-Jul-72 300.7500 19-Jul-72 301.2000 20-Jul-72 300.9300 21-Jul-72 301.1100 24-Jul-72 301.2000 25-Jul-72 300.7500 26-Jul-72 301.2000 27-Jul-72 301.2000 28-Jul-72 301.2000 31-Jul-72 301.3900 1-Aug-72 301.2000 2-Aug-72 301.2000 3-Aug-72 301.2000 4-Aug-72 300.9300 7-Aug-72 301.1100 8-Aug-72 301.2000 9-Aug-72 301.2000 10-Aug-72 301.1100 11-Aug-72 301.1100 14-Aug-72 301.1100 15-Aug-72 301.2000 16-Aug-72 301.2000 17-Aug-72 301.2000 18-Aug-72 301.2000 21-Aug-72 301.1100 22-Aug-72 301.2000 23-Aug-72 301.2000 24-Aug-72 301.2000 25-Aug-72 301.2000 28-Aug-72 301.2000 29-Aug-72 301.2000 30-Aug-72 301.1100 31-Aug-72 301.1100 1-Sep-72 301.1100 4-Sep-72 ND 5-Sep-72 301.2000 6-Sep-72 301.2000 7-Sep-72 301.1100 8-Sep-72 301.1100 11-Sep-72 301.2000 12-Sep-72 301.1100 13-Sep-72 301.1100 14-Sep-72 301.1100 15-Sep-72 301.1100 18-Sep-72 301.1100 19-Sep-72 301.1100 20-Sep-72 301.1100 21-Sep-72 301.1100 22-Sep-72 301.1100 25-Sep-72 301.1100 26-Sep-72 301.1100 27-Sep-72 301.0200 28-Sep-72 301.1100 29-Sep-72 301.1100 2-Oct-72 301.1100 3-Oct-72 301.1100 4-Oct-72 301.1100 5-Oct-72 301.1100 6-Oct-72 300.9300 9-Oct-72 ND 10-Oct-72 300.9300 11-Oct-72 301.0200 12-Oct-72 301.0200 13-Oct-72 301.1100 16-Oct-72 301.1100 17-Oct-72 301.1100 18-Oct-72 301.1100 19-Oct-72 301.0200 20-Oct-72 300.7500 23-Oct-72 ND 24-Oct-72 301.0200 25-Oct-72 301.2000 26-Oct-72 300.8400 27-Oct-72 300.4800 30-Oct-72 301.0200 31-Oct-72 301.1100 1-Nov-72 301.0200 2-Nov-72 300.6600 3-Nov-72 299.9400 6-Nov-72 301.0200 7-Nov-72 ND 8-Nov-72 301.0200 9-Nov-72 301.0200 10-Nov-72 300.9300 13-Nov-72 301.0200 14-Nov-72 301.0200 15-Nov-72 301.1100 16-Nov-72 301.1100 17-Nov-72 301.0200 20-Nov-72 301.1100 21-Nov-72 301.1100 22-Nov-72 301.1100 23-Nov-72 ND 24-Nov-72 301.0200 27-Nov-72 301.1100 28-Nov-72 301.2000 29-Nov-72 301.1100 30-Nov-72 301.1100 1-Dec-72 301.1100 4-Dec-72 301.1100 5-Dec-72 301.1100 6-Dec-72 301.1100 7-Dec-72 301.1100 8-Dec-72 301.1100 11-Dec-72 301.0700 12-Dec-72 301.1100 13-Dec-72 301.1100 14-Dec-72 301.1100 15-Dec-72 301.1100 18-Dec-72 301.1100 19-Dec-72 301.1100 20-Dec-72 301.1100 21-Dec-72 301.1100 22-Dec-72 301.1100 25-Dec-72 ND 26-Dec-72 301.3900 27-Dec-72 302.0200 28-Dec-72 302.0200 29-Dec-72 301.6600 1-Jan-73 ND 2-Jan-73 301.3900 3-Jan-73 301.4300 4-Jan-73 301.2000 5-Jan-73 301.3000 8-Jan-73 302.2100 9-Jan-73 302.0700 10-Jan-73 301.8400 11-Jan-73 301.4800 12-Jan-73 301.6600 15-Jan-73 301.6600 16-Jan-73 301.9300 17-Jan-73 302.1100 18-Jan-73 302.2100 19-Jan-73 302.5700 22-Jan-73 302.4800 23-Jan-73 301.6600 24-Jan-73 302.1100 25-Jan-73 301.8400 26-Jan-73 301.7500 29-Jan-73 301.6600 30-Jan-73 301.3900 31-Jan-73 301.3900 1-Feb-73 300.9300 2-Feb-73 299.5800 5-Feb-73 300.7500 6-Feb-73 299.8500 7-Feb-73 299.8500 8-Feb-73 299.4000 9-Feb-73 293.2600 12-Feb-73 ND 13-Feb-73 266.6700 14-Feb-73 265.9600 15-Feb-73 263.0200 16-Feb-73 263.8500 19-Feb-73 ND 20-Feb-73 265.9600 21-Feb-73 264.9000 22-Feb-73 265.4600 23-Feb-73 264.9000 26-Feb-73 265.6000 27-Feb-73 265.9600 28-Feb-73 265.6700 1-Mar-73 265.6000 2-Mar-73 262.1200 5-Mar-73 259.0700 6-Mar-73 261.7800 7-Mar-73 261.9200 8-Mar-73 261.4400 9-Mar-73 260.4200 12-Mar-73 257.0700 13-Mar-73 254.9700 14-Mar-73 254.4500 15-Mar-73 255.7500 16-Mar-73 260.0800 19-Mar-73 263.1600 20-Mar-73 263.1600 21-Mar-73 263.1600 22-Mar-73 263.5000 23-Mar-73 266.0300 26-Mar-73 265.5300 27-Mar-73 265.3900 28-Mar-73 265.6000 29-Mar-73 265.6700 30-Mar-73 265.9600 2-Apr-73 266.0300 3-Apr-73 265.4600 4-Apr-73 264.9700 5-Apr-73 264.5500 6-Apr-73 264.7600 9-Apr-73 265.5300 10-Apr-73 265.5300 11-Apr-73 265.6700 12-Apr-73 266.0300 13-Apr-73 265.8900 16-Apr-73 265.6000 17-Apr-73 265.4600 18-Apr-73 265.4600 19-Apr-73 265.5300 20-Apr-73 265.6000 23-Apr-73 265.6000 24-Apr-73 265.4600 25-Apr-73 265.4600 26-Apr-73 265.6000 27-Apr-73 265.6000 30-Apr-73 265.5300 1-May-73 265.5300 2-May-73 265.5300 3-May-73 265.5300 4-May-73 265.5300 7-May-73 265.5300 8-May-73 265.6700 9-May-73 265.0400 10-May-73 265.0400 11-May-73 265.4600 14-May-73 264.7600 15-May-73 262.4700 16-May-73 262.9500 17-May-73 264.4800 18-May-73 264.2700 21-May-73 262.9500 22-May-73 263.5700 23-May-73 264.2000 24-May-73 264.5500 25-May-73 264.8300 28-May-73 ND 29-May-73 264.9000 30-May-73 264.8300 31-May-73 264.6900 1-Jun-73 264.0600 4-Jun-73 262.8800 5-Jun-73 262.8800 6-Jun-73 264.1300 7-Jun-73 264.2700 8-Jun-73 264.4100 11-Jun-73 264.6900 12-Jun-73 264.6900 13-Jun-73 264.6200 14-Jun-73 264.6900 15-Jun-73 264.6900 18-Jun-73 264.6900 19-Jun-73 264.8300 20-Jun-73 264.9700 21-Jun-73 265.0400 22-Jun-73 265.0400 25-Jun-73 265.1800 26-Jun-73 265.1800 27-Jun-73 265.1800 28-Jun-73 265.1800 29-Jun-73 263.1600 2-Jul-73 265.2500 3-Jul-73 265.0400 4-Jul-73 ND 5-Jul-73 265.1100 6-Jul-73 262.1200 9-Jul-73 259.4000 10-Jul-73 263.1600 11-Jul-73 264.8300 12-Jul-73 264.7600 13-Jul-73 265.0400 16-Jul-73 265.1100 17-Jul-73 265.2500 18-Jul-73 265.1100 19-Jul-73 265.1800 20-Jul-73 265.6000 23-Jul-73 266.1700 24-Jul-73 265.6000 25-Jul-73 265.5300 26-Jul-73 265.6000 27-Jul-73 264.7600 30-Jul-73 263.5700 31-Jul-73 263.4400 1-Aug-73 263.4400 2-Aug-73 264.7600 3-Aug-73 265.3900 6-Aug-73 265.1100 7-Aug-73 265.2500 8-Aug-73 265.1800 9-Aug-73 265.1100 10-Aug-73 265.2500 13-Aug-73 265.4600 14-Aug-73 265.4600 15-Aug-73 265.4600 16-Aug-73 265.3900 17-Aug-73 265.5300 20-Aug-73 265.6000 21-Aug-73 265.1800 22-Aug-73 265.2500 23-Aug-73 265.2500 24-Aug-73 265.2500 27-Aug-73 265.3200 28-Aug-73 265.3200 29-Aug-73 265.3200 30-Aug-73 265.3900 31-Aug-73 265.3900 3-Sep-73 ND 4-Sep-73 265.4600 5-Sep-73 265.3900 6-Sep-73 265.3900 7-Sep-73 265.3900 10-Sep-73 265.3900 11-Sep-73 265.4600 12-Sep-73 265.6000 13-Sep-73 265.6000 14-Sep-73 265.6000 17-Sep-73 265.5300 18-Sep-73 265.5300 19-Sep-73 265.4600 20-Sep-73 265.3900 21-Sep-73 265.2500 24-Sep-73 265.3900 25-Sep-73 265.4600 26-Sep-73 265.5300 27-Sep-73 265.6000 28-Sep-73 265.6000 1-Oct-73 265.6000 2-Oct-73 265.7500 3-Oct-73 265.8900 4-Oct-73 265.9600 5-Oct-73 266.1700 8-Oct-73 ND 9-Oct-73 266.3100 10-Oct-73 266.3100 11-Oct-73 266.2400 12-Oct-73 266.2400 15-Oct-73 266.4500 16-Oct-73 266.4500 17-Oct-73 266.3800 18-Oct-73 266.3100 19-Oct-73 266.3800 22-Oct-73 ND 23-Oct-73 266.4500 24-Oct-73 266.3800 25-Oct-73 266.4500 26-Oct-73 266.6700 29-Oct-73 266.7400 30-Oct-73 266.9500 31-Oct-73 266.9500 1-Nov-73 270.2700 2-Nov-73 276.0100 5-Nov-73 275.1800 6-Nov-73 ND 7-Nov-73 275.1800 8-Nov-73 275.2500 9-Nov-73 275.3300 12-Nov-73 275.2500 13-Nov-73 280.1900 14-Nov-73 280.6600 15-Nov-73 280.2700 16-Nov-73 280.1100 19-Nov-73 280.1100 20-Nov-73 280.4300 21-Nov-73 280.1100 22-Nov-73 ND 23-Nov-73 280.6600 26-Nov-73 280.1100 27-Nov-73 280.1100 28-Nov-73 279.8000 29-Nov-73 280.1100 30-Nov-73 280.1100 3-Dec-73 280.1100 4-Dec-73 280.1100 5-Dec-73 280.1100 6-Dec-73 280.1100 7-Dec-73 280.1100 10-Dec-73 280.1100 11-Dec-73 280.1100 12-Dec-73 280.0300 13-Dec-73 280.1100 14-Dec-73 280.1100 17-Dec-73 280.1100 18-Dec-73 280.1100 19-Dec-73 280.1100 20-Dec-73 280.1100 21-Dec-73 280.1100 24-Dec-73 280.3500 25-Dec-73 ND 26-Dec-73 280.2700 27-Dec-73 280.6600 28-Dec-73 280.4300 31-Dec-73 280.2700 1-Jan-74 ND 2-Jan-74 280.8200 3-Jan-74 283.6900 4-Jan-74 282.0900 7-Jan-74 300.3000 8-Jan-74 299.9400 9-Jan-74 299.9400 10-Jan-74 299.9400 11-Jan-74 300.0300 14-Jan-74 300.1200 15-Jan-74 300.1200 16-Jan-74 300.1200 17-Jan-74 300.1200 18-Jan-74 300.1200 21-Jan-74 305.3400 22-Jan-74 304.8800 23-Jan-74 303.5800 24-Jan-74 300.1200 25-Jan-74 299.8000 28-Jan-74 299.8500 29-Jan-74 300.0300 30-Jan-74 299.2200 31-Jan-74 298.7700 1-Feb-74 298.8600 4-Feb-74 297.0000 5-Feb-74 293.6900 6-Feb-74 297.6200 7-Feb-74 296.8200 8-Feb-74 296.3000 11-Feb-74 295.5100 12-Feb-74 ND 13-Feb-74 291.8900 14-Feb-74 291.5500 15-Feb-74 293.1700 18-Feb-74 ND 19-Feb-74 290.1100 20-Feb-74 289.0200 21-Feb-74 282.0900 22-Feb-74 280.5800 25-Feb-74 283.3700 26-Feb-74 286.5300 27-Feb-74 287.0300 28-Feb-74 288.4300 1-Mar-74 292.0600 4-Mar-74 292.7400 5-Mar-74 289.4400 6-Mar-74 287.0300 7-Mar-74 286.8600 8-Mar-74 287.1900 11-Mar-74 285.7100 12-Mar-74 281.6900 13-Mar-74 282.3300 14-Mar-74 282.8900 15-Mar-74 282.4900 18-Mar-74 281.9300 19-Mar-74 280.9800 20-Mar-74 280.1900 21-Mar-74 279.1000 22-Mar-74 276.7800 25-Mar-74 275.1800 26-Mar-74 274.8800 27-Mar-74 275.4800 28-Mar-74 274.4200 29-Mar-74 276.0900 1-Apr-74 280.1100 2-Apr-74 275.4800 3-Apr-74 275.8600 4-Apr-74 278.3200 5-Apr-74 279.3300 8-Apr-74 278.0100 9-Apr-74 279.2500 10-Apr-74 278.0100 11-Apr-74 276.7800 12-Apr-74 278.5500 15-Apr-74 278.5500 16-Apr-74 276.9300 17-Apr-74 276.4000 18-Apr-74 276.4000 19-Apr-74 276.9300 22-Apr-74 277.3900 23-Apr-74 275.5600 24-Apr-74 276.2400 25-Apr-74 278.1600 26-Apr-74 279.8000 29-Apr-74 279.3300 30-Apr-74 279.6400 1-May-74 279.4100 2-May-74 279.9600 3-May-74 279.8000 6-May-74 279.4100 7-May-74 279.5600 8-May-74 277.6200 9-May-74 277.6200 10-May-74 277.6200 13-May-74 277.6200 14-May-74 277.7800 15-May-74 277.3900 16-May-74 277.6200 17-May-74 277.7000 20-May-74 278.2400 21-May-74 279.1000 22-May-74 279.8800 23-May-74 279.5600 24-May-74 279.4900 27-May-74 ND 28-May-74 279.3300 29-May-74 279.7200 30-May-74 280.9000 31-May-74 281.9300 3-Jun-74 283.6900 4-Jun-74 282.8900 5-Jun-74 281.8500 6-Jun-74 281.9300 7-Jun-74 282.6500 10-Jun-74 282.1700 11-Jun-74 282.2500 12-Jun-74 282.9700 13-Jun-74 282.4900 14-Jun-74 282.5700 17-Jun-74 282.7300 18-Jun-74 282.7300 19-Jun-74 282.6500 20-Jun-74 282.8900 21-Jun-74 283.2100 24-Jun-74 283.6100 25-Jun-74 283.8500 26-Jun-74 284.0900 27-Jun-74 283.9300 28-Jun-74 284.2500 1-Jul-74 285.3100 2-Jul-74 286.6100 3-Jul-74 285.8800 4-Jul-74 ND 5-Jul-74 287.3600 8-Jul-74 287.9400 9-Jul-74 288.4300 10-Jul-74 290.7000 11-Jul-74 291.9700 12-Jul-74 289.1800 15-Jul-74 288.8500 16-Jul-74 288.1000 17-Jul-74 289.9400 18-Jul-74 290.3600 19-Jul-74 290.7000 22-Jul-74 291.2900 23-Jul-74 292.7400 24-Jul-74 292.8300 25-Jul-74 293.9400 26-Jul-74 295.4200 29-Jul-74 298.2400 30-Jul-74 297.5300 31-Jul-74 298.2400 1-Aug-74 299.5800 2-Aug-74 300.1200 5-Aug-74 300.2100 6-Aug-74 300.7500 7-Aug-74 302.1100 8-Aug-74 302.7500 9-Aug-74 302.5700 12-Aug-74 302.1100 13-Aug-74 301.8400 14-Aug-74 302.4800 15-Aug-74 302.7500 16-Aug-74 302.9400 19-Aug-74 303.1200 20-Aug-74 303.1200 21-Aug-74 303.4900 22-Aug-74 303.8600 23-Aug-74 303.1200 26-Aug-74 302.8500 27-Aug-74 302.1100 28-Aug-74 302.4800 29-Aug-74 302.9400 30-Aug-74 302.9400 2-Sep-74 ND 3-Sep-74 302.6600 4-Sep-74 302.7500 5-Sep-74 302.5700 6-Sep-74 302.6600 9-Sep-74 302.4800 10-Sep-74 302.7500 11-Sep-74 302.1100 12-Sep-74 301.2000 13-Sep-74 299.5800 16-Sep-74 299.4000 17-Sep-74 296.1200 18-Sep-74 296.0300 19-Sep-74 296.8200 20-Sep-74 295.8600 23-Sep-74 295.8600 24-Sep-74 294.8100 25-Sep-74 296.2100 26-Sep-74 296.7400 27-Sep-74 296.7400 30-Sep-74 298.3300 1-Oct-74 298.1500 2-Oct-74 297.9700 3-Oct-74 299.0400 4-Oct-74 299.0400 7-Oct-74 300.0300 8-Oct-74 299.7600 9-Oct-74 298.6900 10-Oct-74 298.7700 11-Oct-74 299.1300 14-Oct-74 ND 15-Oct-74 299.1300 16-Oct-74 299.0400 17-Oct-74 298.9500 18-Oct-74 299.3100 21-Oct-74 299.6700 22-Oct-74 299.9400 23-Oct-74 299.6700 24-Oct-74 299.9400 25-Oct-74 299.8500 28-Oct-74 300.1200 29-Oct-74 299.9400 30-Oct-74 299.9400 31-Oct-74 299.9400 1-Nov-74 300.4800 4-Nov-74 300.4800 5-Nov-74 ND 6-Nov-74 300.4800 7-Nov-74 299.7600 8-Nov-74 299.6700 11-Nov-74 ND 12-Nov-74 300.3000 13-Nov-74 300.1200 14-Nov-74 300.3000 15-Nov-74 299.9400 18-Nov-74 299.6700 19-Nov-74 299.9400 20-Nov-74 299.9400 21-Nov-74 299.9400 22-Nov-74 299.8500 25-Nov-74 300.2100 26-Nov-74 300.1200 27-Nov-74 299.8500 28-Nov-74 ND 29-Nov-74 300.3000 2-Dec-74 300.3900 3-Dec-74 300.0300 4-Dec-74 299.7600 5-Dec-74 300.0300 6-Dec-74 299.9400 9-Dec-74 299.8500 10-Dec-74 299.7600 11-Dec-74 299.7600 12-Dec-74 300.0300 13-Dec-74 300.0300 16-Dec-74 300.3000 17-Dec-74 300.4800 18-Dec-74 300.6600 19-Dec-74 300.8400 20-Dec-74 301.1100 23-Dec-74 301.0200 24-Dec-74 301.2000 25-Dec-74 ND 26-Dec-74 301.1100 27-Dec-74 300.7500 30-Dec-74 300.5700 31-Dec-74 301.0200 1-Jan-75 ND 2-Jan-75 300.6600 3-Jan-75 300.8400 6-Jan-75 301.0200 7-Jan-75 300.9300 8-Jan-75 300.7500 9-Jan-75 300.8400 10-Jan-75 300.8400 13-Jan-75 300.9300 14-Jan-75 300.9300 15-Jan-75 301.0200 16-Jan-75 300.7500 17-Jan-75 300.8400 20-Jan-75 301.0200 21-Jan-75 300.8400 22-Jan-75 300.3000 23-Jan-75 299.6700 24-Jan-75 295.3300 27-Jan-75 294.9900 28-Jan-75 297.4400 29-Jan-75 297.3500 30-Jan-75 297.8000 31-Jan-75 297.9700 3-Feb-75 297.4400 4-Feb-75 297.0900 5-Feb-75 297.2700 6-Feb-75 297.0000 7-Feb-75 295.6000 10-Feb-75 292.4000 11-Feb-75 291.6300 12-Feb-75 ND 13-Feb-75 292.8300 14-Feb-75 293.2600 17-Feb-75 ND 18-Feb-75 293.3400 19-Feb-75 291.5500 20-Feb-75 291.1200 21-Feb-75 289.5200 24-Feb-75 285.8800 25-Feb-75 285.9600 26-Feb-75 285.6300 27-Feb-75 285.8800 28-Feb-75 286.4500 3-Mar-75 285.3900 4-Mar-75 284.6600 5-Mar-75 285.2300 6-Mar-75 285.7100 7-Mar-75 285.9600 10-Mar-75 286.2100 11-Mar-75 286.1200 12-Mar-75 287.2700 13-Mar-75 288.8500 14-Mar-75 288.1000 17-Mar-75 286.5300 18-Mar-75 287.1900 19-Mar-75 288.1800 20-Mar-75 287.1900 21-Mar-75 287.4400 24-Mar-75 287.7700 25-Mar-75 290.0200 26-Mar-75 290.5300 27-Mar-75 292.0600 28-Mar-75 292.4800 31-Mar-75 294.0300 1-Apr-75 290.8700 2-Apr-75 291.5500 3-Apr-75 292.3100 4-Apr-75 292.2300 7-Apr-75 291.9700 8-Apr-75 291.8900 9-Apr-75 291.8900 10-Apr-75 291.8000 11-Apr-75 291.1200 14-Apr-75 291.2900 15-Apr-75 290.9500 16-Apr-75 291.3800 17-Apr-75 291.7200 18-Apr-75 291.8000 21-Apr-75 292.8300 22-Apr-75 292.8300 23-Apr-75 292.7400 24-Apr-75 292.8300 25-Apr-75 293.6900 28-Apr-75 294.5500 29-Apr-75 293.8600 30-Apr-75 292.2300 1-May-75 292.1400 2-May-75 290.3600 5-May-75 290.4400 6-May-75 291.3800 7-May-75 291.2100 8-May-75 291.3800 9-May-75 291.4600 12-May-75 291.2900 13-May-75 291.4600 14-May-75 291.8000 15-May-75 291.6300 16-May-75 291.5500 19-May-75 291.8000 20-May-75 292.2300 21-May-75 292.0600 22-May-75 291.8900 23-May-75 291.0400 26-May-75 ND 27-May-75 291.2900 28-May-75 290.7000 29-May-75 291.3800 30-May-75 291.5500 2-Jun-75 291.4600 3-Jun-75 291.0400 4-Jun-75 291.2900 5-Jun-75 292.2300 6-Jun-75 291.8000 9-Jun-75 291.8000 10-Jun-75 291.8900 11-Jun-75 291.8900 12-Jun-75 292.4800 13-Jun-75 292.6500 16-Jun-75 294.1200 17-Jun-75 293.4300 18-Jun-75 294.1200 19-Jun-75 294.1200 20-Jun-75 293.9400 23-Jun-75 294.7200 24-Jun-75 295.3300 25-Jun-75 297.0000 26-Jun-75 295.7700 27-Jun-75 296.0300 30-Jun-75 295.6800 1-Jul-75 295.6800 2-Jul-75 295.5100 3-Jul-75 295.4200 4-Jul-75 ND 7-Jul-75 295.5100 8-Jul-75 295.6800 9-Jul-75 295.9500 10-Jul-75 296.1200 11-Jul-75 296.1200 14-Jul-75 295.8600 15-Jul-75 295.8600 16-Jul-75 296.0300 17-Jul-75 296.3000 18-Jul-75 296.2100 21-Jul-75 296.1200 22-Jul-75 296.4700 23-Jul-75 296.8200 24-Jul-75 297.6200 25-Jul-75 296.6500 28-Jul-75 297.8000 29-Jul-75 297.3500 30-Jul-75 297.4400 31-Jul-75 297.7100 1-Aug-75 297.8900 4-Aug-75 297.9700 5-Aug-75 297.9700 6-Aug-75 298.0600 7-Aug-75 297.9700 8-Aug-75 297.6200 11-Aug-75 297.8000 12-Aug-75 298.0600 13-Aug-75 297.9700 14-Aug-75 297.9700 15-Aug-75 297.9700 18-Aug-75 298.1500 19-Aug-75 298.0600 20-Aug-75 297.9700 21-Aug-75 297.8900 22-Aug-75 297.9700 25-Aug-75 298.0600 26-Aug-75 298.1500 27-Aug-75 297.9700 28-Aug-75 298.0600 29-Aug-75 297.9700 1-Sep-75 ND 2-Sep-75 297.9700 3-Sep-75 297.8000 4-Sep-75 297.8900 5-Sep-75 297.9700 8-Sep-75 297.9700 9-Sep-75 298.0600 10-Sep-75 297.9700 11-Sep-75 298.0600 12-Sep-75 298.0600 15-Sep-75 298.0600 16-Sep-75 298.0600 17-Sep-75 298.3300 18-Sep-75 300.4800 19-Sep-75 301.5700 22-Sep-75 302.9400 23-Sep-75 303.3100 24-Sep-75 303.1200 25-Sep-75 302.6600 26-Sep-75 301.7500 29-Sep-75 303.2100 30-Sep-75 302.8500 1-Oct-75 302.5700 2-Oct-75 302.6600 3-Oct-75 303.0300 6-Oct-75 303.1200 7-Oct-75 302.9400 8-Oct-75 303.1200 9-Oct-75 303.0300 10-Oct-75 302.9400 13-Oct-75 ND 14-Oct-75 302.6600 15-Oct-75 302.9400 16-Oct-75 302.9400 17-Oct-75 302.7600 20-Oct-75 302.4800 21-Oct-75 301.1100 22-Oct-75 301.5700 23-Oct-75 301.8400 24-Oct-75 301.6600 27-Oct-75 301.5700 28-Oct-75 301.4800 29-Oct-75 301.5700 30-Oct-75 301.6600 31-Oct-75 301.7500 3-Nov-75 301.7500 4-Nov-75 ND 5-Nov-75 301.8400 6-Nov-75 301.7500 7-Nov-75 301.7500 10-Nov-75 302.3000 11-Nov-75 ND 12-Nov-75 301.9300 13-Nov-75 302.2100 14-Nov-75 302.5700 17-Nov-75 302.6600 18-Nov-75 302.9400 19-Nov-75 303.1200 20-Nov-75 302.9400 21-Nov-75 303.1200 24-Nov-75 302.9400 25-Nov-75 303.1200 26-Nov-75 303.2100 27-Nov-75 ND 28-Nov-75 303.1200 1-Dec-75 304.4100 2-Dec-75 304.4100 3-Dec-75 305.0600 4-Dec-75 304.9700 5-Dec-75 306.7500 8-Dec-75 306.8400 9-Dec-75 306.1900 10-Dec-75 306.0900 11-Dec-75 305.9000 12-Dec-75 305.9000 15-Dec-75 306.0000 16-Dec-75 305.5300 17-Dec-75 305.6200 18-Dec-75 305.6200 19-Dec-75 306.0900 22-Dec-75 306.0900 23-Dec-75 306.0000 24-Dec-75 305.9000 25-Dec-75 ND 26-Dec-75 305.9000 29-Dec-75 305.2500 30-Dec-75 305.0600 31-Dec-75 305.1600 1-Jan-76 ND 2-Jan-76 305.0600 5-Jan-76 305.1600 6-Jan-76 305.0600 7-Jan-76 305.2500 8-Jan-76 305.6200 9-Jan-76 306.0000 12-Jan-76 305.1600 13-Jan-76 305.2500 14-Jan-76 305.3400 15-Jan-76 305.2500 16-Jan-76 305.2500 19-Jan-76 304.1400 20-Jan-76 303.8600 21-Jan-76 304.4100 22-Jan-76 304.1400 23-Jan-76 304.0400 26-Jan-76 303.7700 27-Jan-76 303.6700 28-Jan-76 303.5800 29-Jan-76 303.6700 30-Jan-76 303.6700 2-Feb-76 303.2100 3-Feb-76 302.7600 4-Feb-76 300.5700 5-Feb-76 300.5700 6-Feb-76 301.3900 9-Feb-76 300.7500 10-Feb-76 300.6600 11-Feb-76 300.1200 12-Feb-76 ND 13-Feb-76 300.7500 16-Feb-76 ND 17-Feb-76 301.5700 18-Feb-76 301.6600 19-Feb-76 301.7500 20-Feb-76 302.1100 23-Feb-76 302.5700 24-Feb-76 302.0200 25-Feb-76 302.0200 26-Feb-76 302.1100 27-Feb-76 302.1100 1-Mar-76 301.6600 2-Mar-76 301.6600 3-Mar-76 301.5700 4-Mar-76 301.6600 5-Mar-76 301.5700 8-Mar-76 300.7500 9-Mar-76 301.1100 10-Mar-76 301.3000 11-Mar-76 301.3000 12-Mar-76 300.8400 15-Mar-76 300.6600 16-Mar-76 300.5700 17-Mar-76 299.9400 18-Mar-76 299.9400 19-Mar-76 299.6700 22-Mar-76 299.8500 23-Mar-76 299.7600 24-Mar-76 299.7600 25-Mar-76 299.6700 26-Mar-76 299.5800 29-Mar-76 299.6700 30-Mar-76 299.8500 31-Mar-76 299.5800 1-Apr-76 299.4900 2-Apr-76 299.3100 5-Apr-76 299.3100 6-Apr-76 299.0400 7-Apr-76 298.8600 8-Apr-76 297.4400 9-Apr-76 297.8900 12-Apr-76 298.4200 13-Apr-76 298.6000 14-Apr-76 298.0600 15-Apr-76 299.4000 16-Apr-76 299.3100 19-Apr-76 300.0300 20-Apr-76 299.4900 21-Apr-76 299.5800 22-Apr-76 299.6700 23-Apr-76 299.7600 26-Apr-76 299.8500 27-Apr-76 299.3100 28-Apr-76 299.2200 29-Apr-76 299.3100 30-Apr-76 299.0400 3-May-76 298.9500 4-May-76 297.8900 5-May-76 297.9700 6-May-76 298.2400 7-May-76 298.5100 10-May-76 298.4200 11-May-76 298.4200 12-May-76 298.6900 13-May-76 298.9500 14-May-76 298.7800 17-May-76 299.3100 18-May-76 299.1300 19-May-76 299.2200 20-May-76 299.4000 21-May-76 299.5800 24-May-76 299.5800 25-May-76 299.5800 26-May-76 299.7600 27-May-76 299.6700 28-May-76 300.0300 31-May-76 ND 1-Jun-76 300.3900 2-Jun-76 300.3000 3-Jun-76 300.4800 4-Jun-76 300.3900 7-Jun-76 300.3000 8-Jun-76 300.1200 9-Jun-76 299.9400 10-Jun-76 299.9400 11-Jun-76 300.0300 14-Jun-76 299.9400 15-Jun-76 299.7600 16-Jun-76 299.8500 17-Jun-76 300.0300 18-Jun-76 299.3100 21-Jun-76 299.3100 22-Jun-76 299.2200 23-Jun-76 296.8200 24-Jun-76 297.2700 25-Jun-76 297.8000 28-Jun-76 296.0300 29-Jun-76 297.0000 30-Jun-76 297.9700 1-Jul-76 296.9100 2-Jul-76 297.1800 5-Jul-76 ND 6-Jul-76 296.3800 7-Jul-76 296.6500 8-Jul-76 296.4700 9-Jul-76 296.7400 12-Jul-76 296.3800 13-Jul-76 294.9000 14-Jul-76 292.6500 15-Jul-76 293.1700 16-Jul-76 294.0300 19-Jul-76 293.6900 20-Jul-76 293.3400 21-Jul-76 293.6000 22-Jul-76 293.6900 23-Jul-76 293.9400 26-Jul-76 293.5100 27-Jul-76 293.8600 28-Jul-76 293.5100 29-Jul-76 293.6000 30-Jul-76 293.2600 2-Aug-76 292.9100 3-Aug-76 292.9100 4-Aug-76 292.8300 5-Aug-76 293.0000 6-Aug-76 293.0000 9-Aug-76 292.6500 10-Aug-76 292.8300 11-Aug-76 292.5700 12-Aug-76 292.6500 13-Aug-76 291.1200 16-Aug-76 290.3600 17-Aug-76 287.8500 18-Aug-76 288.2700 19-Aug-76 288.7700 20-Aug-76 289.3500 23-Aug-76 289.7700 24-Aug-76 288.4300 25-Aug-76 288.8500 26-Aug-76 288.9300 27-Aug-76 288.6000 30-Aug-76 288.7700 31-Aug-76 289.3500 1-Sep-76 288.9300 2-Sep-76 288.6800 3-Sep-76 287.7700 6-Sep-76 ND 7-Sep-76 287.7700 8-Sep-76 287.6000 9-Sep-76 286.0400 10-Sep-76 286.9400 13-Sep-76 286.6200 14-Sep-76 286.5300 15-Sep-76 286.1200 16-Sep-76 286.7000 17-Sep-76 287.2700 20-Sep-76 287.1100 21-Sep-76 288.0200 22-Sep-76 287.1100 23-Sep-76 287.7700 24-Sep-76 287.8500 27-Sep-76 287.6000 28-Sep-76 287.5200 29-Sep-76 287.7700 30-Sep-76 286.8600 1-Oct-76 287.1100 4-Oct-76 287.2700 5-Oct-76 287.4400 6-Oct-76 288.0200 7-Oct-76 288.1000 8-Oct-76 288.7700 11-Oct-76 ND 12-Oct-76 289.8600 13-Oct-76 290.3600 14-Oct-76 292.3100 15-Oct-76 293.0000 18-Oct-76 292.4800 19-Oct-76 292.2300 20-Oct-76 292.1400 21-Oct-76 292.7400 22-Oct-76 293.6900 25-Oct-76 293.3400 26-Oct-76 293.7700 27-Oct-76 293.1700 28-Oct-76 293.6000 29-Oct-76 294.3800 1-Nov-76 295.8600 2-Nov-76 ND 3-Nov-76 295.1600 4-Nov-76 295.3300 5-Nov-76 294.9900 8-Nov-76 293.7700 9-Nov-76 294.2900 10-Nov-76 294.3800 11-Nov-76 ND 12-Nov-76 294.6400 15-Nov-76 294.7200 16-Nov-76 295.1600 17-Nov-76 295.0700 18-Nov-76 295.1600 19-Nov-76 295.4200 22-Nov-76 295.0700 23-Nov-76 295.4200 24-Nov-76 295.4200 25-Nov-76 ND 26-Nov-76 295.5100 29-Nov-76 295.6800 30-Nov-76 297.0900 1-Dec-76 296.9100 2-Dec-76 296.8200 3-Dec-76 297.8900 6-Dec-76 296.5600 7-Dec-76 296.3800 8-Dec-76 296.3000 9-Dec-76 295.7700 10-Dec-76 294.8100 13-Dec-76 294.7200 14-Dec-76 295.3300 15-Dec-76 294.7200 16-Dec-76 295.5100 17-Dec-76 294.6400 20-Dec-76 293.6000 21-Dec-76 293.9400 22-Dec-76 293.8600 23-Dec-76 293.4300 24-Dec-76 293.5100 27-Dec-76 292.3100 28-Dec-76 292.1400 29-Dec-76 292.9100 30-Dec-76 293.0000 31-Dec-76 293.0800 3-Jan-77 292.4800 4-Jan-77 291.7200 5-Jan-77 292.3100 6-Jan-77 292.9100 7-Jan-77 292.8300 10-Jan-77 292.4800 11-Jan-77 292.4800 12-Jan-77 292.4000 13-Jan-77 292.5700 14-Jan-77 292.0600 17-Jan-77 291.7200 18-Jan-77 291.2100 19-Jan-77 289.6000 20-Jan-77 290.2800 21-Jan-77 290.4400 24-Jan-77 290.1100 25-Jan-77 289.2700 26-Jan-77 288.1800 27-Jan-77 289.1000 28-Jan-77 289.5200 31-Jan-77 288.4300 1-Feb-77 288.0200 2-Feb-77 288.2700 3-Feb-77 288.3500 4-Feb-77 288.1000 7-Feb-77 287.9400 8-Feb-77 287.1100 9-Feb-77 285.9600 10-Feb-77 285.6300 11-Feb-77 285.0600 14-Feb-77 281.6900 15-Feb-77 283.9300 16-Feb-77 283.7700 17-Feb-77 282.9700 18-Feb-77 283.4500 21-Feb-77 ND 22-Feb-77 283.3700 23-Feb-77 283.4500 24-Feb-77 283.5300 25-Feb-77 282.0100 28-Feb-77 282.8100 1-Mar-77 282.4900 2-Mar-77 281.5300 3-Mar-77 281.2900 4-Mar-77 282.0900 7-Mar-77 281.9300 8-Mar-77 282.0900 9-Mar-77 282.3300 10-Mar-77 282.0100 11-Mar-77 282.0100 14-Mar-77 281.2100 15-Mar-77 281.5300 16-Mar-77 281.8500 17-Mar-77 281.6900 18-Mar-77 280.8200 21-Mar-77 279.1000 22-Mar-77 278.9400 23-Mar-77 277.2400 24-Mar-77 278.4700 25-Mar-77 278.3200 28-Mar-77 276.8500 29-Mar-77 276.6300 30-Mar-77 277.2400 31-Mar-77 277.5500 1-Apr-77 276.1700 4-Apr-77 274.6500 5-Apr-77 273.0000 6-Apr-77 273.2200 7-Apr-77 273.6000 8-Apr-77 273.2200 11-Apr-77 271.3000 12-Apr-77 270.7100 13-Apr-77 272.5500 14-Apr-77 273.3700 15-Apr-77 273.8200 18-Apr-77 275.3300 19-Apr-77 275.7900 20-Apr-77 278.7800 21-Apr-77 276.8500 22-Apr-77 277.7800 25-Apr-77 278.0100 26-Apr-77 278.3200 27-Apr-77 278.0100 28-Apr-77 277.0900 29-Apr-77 277.7800 2-May-77 278.0100 3-May-77 278.1600 4-May-77 276.7000 5-May-77 275.9400 6-May-77 276.8500 9-May-77 278.0100 10-May-77 277.4700 11-May-77 277.9300 12-May-77 278.0100 13-May-77 277.6200 16-May-77 277.7000 17-May-77 277.5500 18-May-77 277.3900 19-May-77 276.9700 20-May-77 277.2400 23-May-77 277.5500 24-May-77 277.7800 25-May-77 277.3900 26-May-77 277.1200 27-May-77 277.2800 30-May-77 ND 31-May-77 277.2800 1-Jun-77 277.3200 2-Jun-77 276.5500 3-Jun-77 276.2800 6-Jun-77 275.1800 7-Jun-77 275.5600 8-Jun-77 274.4200 9-Jun-77 273.7500 10-Jun-77 273.6700 13-Jun-77 271.8100 14-Jun-77 272.3300 15-Jun-77 272.7800 16-Jun-77 272.4400 17-Jun-77 272.7000 20-Jun-77 272.7800 21-Jun-77 272.4400 22-Jun-77 271.7400 23-Jun-77 271.8100 24-Jun-77 272.0000 27-Jun-77 271.4800 28-Jun-77 270.8600 29-Jun-77 267.4500 30-Jun-77 267.5900 1-Jul-77 267.1300 4-Jul-77 ND 5-Jul-77 264.9000 6-Jul-77 265.3900 7-Jul-77 264.6900 8-Jul-77 264.7600 11-Jul-77 263.0900 12-Jul-77 264.4800 13-Jul-77 264.2700 14-Jul-77 ND 15-Jul-77 265.3200 18-Jul-77 263.9900 19-Jul-77 264.2700 20-Jul-77 264.8300 21-Jul-77 264.7600 22-Jul-77 264.2400 25-Jul-77 264.3400 26-Jul-77 264.4100 27-Jul-77 264.7600 28-Jul-77 265.9600 29-Jul-77 266.8100 1-Aug-77 267.1300 2-Aug-77 266.5200 3-Aug-77 265.5700 4-Aug-77 265.5300 5-Aug-77 265.8500 8-Aug-77 266.2400 9-Aug-77 265.9600 10-Aug-77 266.0600 11-Aug-77 265.9600 12-Aug-77 266.3800 15-Aug-77 267.9200 16-Aug-77 267.6700 17-Aug-77 266.7400 18-Aug-77 266.7400 19-Aug-77 267.2700 22-Aug-77 266.7000 23-Aug-77 266.7700 24-Aug-77 266.2100 25-Aug-77 267.3100 26-Aug-77 267.0900 29-Aug-77 267.0600 30-Aug-77 267.4000 31-Aug-77 267.5000 1-Sep-77 268.1700 2-Sep-77 267.9700 5-Sep-77 ND 6-Sep-77 267.5900 7-Sep-77 266.8100 8-Sep-77 266.8800 9-Sep-77 266.8400 12-Sep-77 266.6700 13-Sep-77 266.8400 14-Sep-77 267.1300 15-Sep-77 267.0600 16-Sep-77 267.0900 19-Sep-77 266.9200 20-Sep-77 266.8800 21-Sep-77 266.8800 22-Sep-77 266.8100 23-Sep-77 266.8100 26-Sep-77 266.7000 27-Sep-77 266.6300 28-Sep-77 266.6700 29-Sep-77 265.1100 30-Sep-77 263.7100 3-Oct-77 260.7200 4-Oct-77 260.8200 5-Oct-77 261.1000 6-Oct-77 258.5500 7-Oct-77 257.6000 10-Oct-77 ND 11-Oct-77 257.8000 12-Oct-77 256.8100 13-Oct-77 254.9700 14-Oct-77 253.0000 17-Oct-77 252.5300 18-Oct-77 252.2100 19-Oct-77 254.4500 20-Oct-77 254.1900 21-Oct-77 254.3200 24-Oct-77 251.9500 25-Oct-77 252.3300 26-Oct-77 251.6000 27-Oct-77 250.3100 28-Oct-77 250.5000 31-Oct-77 249.1300 1-Nov-77 246.7300 2-Nov-77 248.3200 3-Nov-77 247.7400 4-Nov-77 249.0000 7-Nov-77 248.6900 8-Nov-77 ND 9-Nov-77 247.1000 10-Nov-77 246.1800 11-Nov-77 ND 14-Nov-77 245.1000 15-Nov-77 245.2800 16-Nov-77 245.2500 17-Nov-77 245.4000 18-Nov-77 243.4900 21-Nov-77 242.7800 22-Nov-77 240.6400 23-Nov-77 239.7500 24-Nov-77 ND 25-Nov-77 239.9800 28-Nov-77 240.2400 29-Nov-77 243.6600 30-Nov-77 244.0200 1-Dec-77 243.0700 2-Dec-77 242.5100 5-Dec-77 242.0100 6-Dec-77 241.6000 7-Dec-77 241.4300 8-Dec-77 241.7200 9-Dec-77 242.3700 12-Dec-77 241.7800 13-Dec-77 240.5300 14-Dec-77 237.8100 15-Dec-77 239.1200 16-Dec-77 240.5900 19-Dec-77 241.0200 20-Dec-77 240.5000 21-Dec-77 240.3800 22-Dec-77 241.5500 23-Dec-77 241.6600 26-Dec-77 ND 27-Dec-77 241.3700 28-Dec-77 240.4400 29-Dec-77 240.0400 30-Dec-77 239.9800 2-Jan-78 ND 3-Jan-78 237.5900 4-Jan-78 237.4200 5-Jan-78 241.0800 6-Jan-78 240.3800 9-Jan-78 241.4600 10-Jan-78 241.4900 11-Jan-78 240.5000 12-Jan-78 241.6000 13-Jan-78 241.4900 16-Jan-78 241.6000 17-Jan-78 242.0100 18-Jan-78 242.4200 19-Jan-78 242.1300 20-Jan-78 241.8500 23-Jan-78 241.4600 24-Jan-78 241.6600 25-Jan-78 241.2500 26-Jan-78 240.5600 27-Jan-78 241.3700 30-Jan-78 241.7800 31-Jan-78 241.6000 1-Feb-78 241.6000 2-Feb-78 241.8100 3-Feb-78 241.8400 6-Feb-78 241.1400 7-Feb-78 241.4300 8-Feb-78 241.4900 9-Feb-78 241.5500 10-Feb-78 241.5800 13-Feb-78 ND 14-Feb-78 240.7000 15-Feb-78 240.6700 16-Feb-78 240.1500 17-Feb-78 239.8100 20-Feb-78 ND 21-Feb-78 238.4100 22-Feb-78 238.8300 23-Feb-78 238.1500 24-Feb-78 240.2100 27-Feb-78 239.2300 28-Feb-78 238.1000 1-Mar-78 238.2700 2-Mar-78 238.4100 3-Mar-78 237.0200 6-Mar-78 236.4100 7-Mar-78 235.5700 8-Mar-78 234.4100 9-Mar-78 235.0200 10-Mar-78 235.9000 13-Mar-78 234.0300 14-Mar-78 233.0500 15-Mar-78 233.0500 16-Mar-78 235.6300 17-Mar-78 231.0000 20-Mar-78 231.1600 21-Mar-78 230.6300 22-Mar-78 230.3600 23-Mar-78 230.0200 24-Mar-78 228.0000 27-Mar-78 225.2300 28-Mar-78 225.0200 29-Mar-78 222.2700 30-Mar-78 222.3700 31-Mar-78 229.8900 3-Apr-78 218.3400 4-Apr-78 219.3000 5-Apr-78 218.9600 6-Apr-78 218.6300 7-Apr-78 220.1200 10-Apr-78 219.8300 11-Apr-78 219.3300 12-Apr-78 218.7200 13-Apr-78 219.3500 14-Apr-78 219.4000 17-Apr-78 220.6000 18-Apr-78 221.5300 19-Apr-78 221.8800 20-Apr-78 226.7600 21-Apr-78 225.8900 24-Apr-78 228.1000 25-Apr-78 227.5800 26-Apr-78 225.6300 27-Apr-78 222.2200 28-Apr-78 224.9700 1-May-78 225.7800 2-May-78 226.0700 3-May-78 226.1400 4-May-78 224.7700 5-May-78 224.5900 8-May-78 225.1200 9-May-78 225.3800 10-May-78 224.9200 11-May-78 225.2300 12-May-78 225.6300 15-May-78 226.2200 16-May-78 228.4100 17-May-78 227.9500 18-May-78 227.5300 19-May-78 228.0000 22-May-78 228.8300 23-May-78 229.0400 24-May-78 228.4100 25-May-78 225.8400 26-May-78 225.6800 29-May-78 225.0500 30-May-78 ND 31-May-78 221.3400 1-Jun-78 221.5100 2-Jun-78 221.2400 5-Jun-78 220.9900 6-Jun-78 220.9900 7-Jun-78 220.9900 8-Jun-78 220.9000 9-Jun-78 220.6000 12-Jun-78 218.0100 13-Jun-78 216.9200 14-Jun-78 215.3800 15-Jun-78 216.1700 16-Jun-78 215.8900 19-Jun-78 213.4900 20-Jun-78 211.1500 21-Jun-78 210.6600 22-Jun-78 211.1000 23-Jun-78 207.4700 26-Jun-78 206.0600 27-Jun-78 205.9300 28-Jun-78 205.9700 29-Jun-78 205.2100 30-Jun-78 203.7100 3-Jul-78 202.4300 4-Jul-78 ND 5-Jul-78 201.6100 6-Jul-78 203.0900 7-Jul-78 202.3500 10-Jul-78 201.6900 11-Jul-78 202.8600 12-Jul-78 203.2900 13-Jul-78 202.6500 14-Jul-78 202.5900 17-Jul-78 203.7900 18-Jul-78 202.5500 19-Jul-78 201.5300 20-Jul-78 201.5700 21-Jul-78 200.9400 24-Jul-78 198.0200 25-Jul-78 195.4700 26-Jul-78 194.1000 27-Jul-78 193.6500 28-Jul-78 190.5900 31-Jul-78 189.1400 1-Aug-78 186.5700 2-Aug-78 186.2900 3-Aug-78 188.3200 4-Aug-78 190.1900 7-Aug-78 188.7900 8-Aug-78 187.3400 9-Aug-78 187.6200 10-Aug-78 186.6700 11-Aug-78 185.5300 14-Aug-78 183.7600 15-Aug-78 185.2900 16-Aug-78 184.6400 17-Aug-78 188.3200 18-Aug-78 188.8600 21-Aug-78 193.0100 22-Aug-78 191.3100 23-Aug-78 191.9000 24-Aug-78 191.0200 25-Aug-78 192.5700 28-Aug-78 193.3500 29-Aug-78 189.3900 30-Aug-78 189.0700 31-Aug-78 190.5100 1-Sep-78 190.8000 4-Sep-78 ND 5-Sep-78 190.1500 6-Sep-78 190.0000 7-Sep-78 191.0500 8-Sep-78 192.9000 11-Sep-78 191.9000 12-Sep-78 191.5000 13-Sep-78 189.9000 14-Sep-78 190.1500 15-Sep-78 189.8500 18-Sep-78 190.8000 19-Sep-78 190.3000 20-Sep-78 188.8000 21-Sep-78 187.7500 22-Sep-78 188.2500 25-Sep-78 187.6500 26-Sep-78 189.1500 27-Sep-78 189.1000 28-Sep-78 189.2000 29-Sep-78 189.1900 2-Oct-78 188.8500 3-Oct-78 187.5000 4-Oct-78 187.0000 5-Oct-78 187.3000 6-Oct-78 188.4000 9-Oct-78 ND 10-Oct-78 187.9000 11-Oct-78 185.8500 12-Oct-78 186.6000 13-Oct-78 185.9000 16-Oct-78 183.8500 17-Oct-78 182.2500 18-Oct-78 182.3000 19-Oct-78 183.2500 20-Oct-78 181.8000 23-Oct-78 181.5500 24-Oct-78 182.5500 25-Oct-78 179.5500 26-Oct-78 178.3000 27-Oct-78 179.0000 30-Oct-78 177.0500 31-Oct-78 179.5000 1-Nov-78 186.0000 2-Nov-78 187.8500 3-Nov-78 189.0000 6-Nov-78 190.2500 7-Nov-78 ND 8-Nov-78 187.2500 9-Nov-78 187.9000 10-Nov-78 188.6000 13-Nov-78 188.4500 14-Nov-78 188.9500 15-Nov-78 191.0000 16-Nov-78 194.1000 17-Nov-78 195.6000 20-Nov-78 194.8000 21-Nov-78 195.0000 22-Nov-78 194.2000 23-Nov-78 ND 24-Nov-78 195.0500 27-Nov-78 196.0000 28-Nov-78 196.7500 29-Nov-78 197.0000 30-Nov-78 199.1000 1-Dec-78 201.7000 4-Dec-78 197.6500 5-Dec-78 197.5000 6-Dec-78 197.5500 7-Dec-78 198.6500 8-Dec-78 198.1000 11-Dec-78 196.0000 12-Dec-78 196.3500 13-Dec-78 196.2500 14-Dec-78 195.5500 15-Dec-78 195.8000 18-Dec-78 193.0500 19-Dec-78 193.3000 20-Dec-78 194.6000 21-Dec-78 195.2000 22-Dec-78 194.1000 25-Dec-78 ND 26-Dec-78 195.0000 27-Dec-78 194.5000 28-Dec-78 193.9500 29-Dec-78 194.3000 1-Jan-79 ND 2-Jan-79 194.5800 3-Jan-79 196.6000 4-Jan-79 196.4000 5-Jan-79 196.6500 8-Jan-79 195.6500 9-Jan-79 196.6500 10-Jan-79 196.6500 11-Jan-79 198.2500 12-Jan-79 197.6000 15-Jan-79 197.8000 16-Jan-79 197.1500 17-Jan-79 196.8000 18-Jan-79 196.7500 19-Jan-79 198.2500 22-Jan-79 197.6300 23-Jan-79 197.9000 24-Jan-79 197.7000 25-Jan-79 199.0000 26-Jan-79 199.5500 29-Jan-79 200.1000 30-Jan-79 200.7500 31-Jan-79 202.2000 1-Feb-79 202.7500 2-Feb-79 201.6000 5-Feb-79 199.8500 6-Feb-79 199.0500 7-Feb-79 196.0000 8-Feb-79 197.7000 9-Feb-79 198.8000 12-Feb-79 ND 13-Feb-79 199.7000 14-Feb-79 200.4000 15-Feb-79 200.2500 16-Feb-79 200.7000 19-Feb-79 ND 20-Feb-79 201.0500 21-Feb-79 201.8500 22-Feb-79 201.4000 23-Feb-79 201.4000 26-Feb-79 202.0800 27-Feb-79 201.9000 28-Feb-79 202.6500 1-Mar-79 203.7500 2-Mar-79 204.9000 5-Mar-79 204.7300 6-Mar-79 204.5000 7-Mar-79 204.0000 8-Mar-79 204.1800 9-Mar-79 204.7000 12-Mar-79 205.7300 13-Mar-79 208.6500 14-Mar-79 207.2800 15-Mar-79 206.9500 16-Mar-79 207.4500 19-Mar-79 207.0000 20-Mar-79 207.1700 21-Mar-79 206.9500 22-Mar-79 205.5000 23-Mar-79 205.9000 26-Mar-79 206.8000 27-Mar-79 207.1500 28-Mar-79 207.8800 29-Mar-79 208.3700 30-Mar-79 209.5800 2-Apr-79 211.6500 3-Apr-79 214.4000 4-Apr-79 215.2800 5-Apr-79 215.2300 6-Apr-79 214.9000 9-Apr-79 213.5000 10-Apr-79 212.7500 11-Apr-79 213.5000 12-Apr-79 215.7500 13-Apr-79 215.9000 16-Apr-79 216.4500 17-Apr-79 218.0000 18-Apr-79 215.4000 19-Apr-79 216.1800 20-Apr-79 218.3000 23-Apr-79 218.3500 24-Apr-79 218.4500 25-Apr-79 218.2000 26-Apr-79 218.1000 27-Apr-79 219.9000 30-Apr-79 221.8000 1-May-79 224.4000 2-May-79 224.9500 3-May-79 224.8000 4-May-79 221.5000 7-May-79 214.8000 8-May-79 215.1500 9-May-79 213.1500 10-May-79 214.5800 11-May-79 215.1300 14-May-79 214.0000 15-May-79 214.2000 16-May-79 214.3500 17-May-79 216.7000 18-May-79 218.8000 21-May-79 218.8000 22-May-79 219.4000 23-May-79 219.1500 24-May-79 218.6500 25-May-79 219.7500 28-May-79 220.4500 29-May-79 222.0500 30-May-79 ND 31-May-79 220.3500 1-Jun-79 221.2800 4-Jun-79 219.7500 5-Jun-79 221.1500 6-Jun-79 220.3500 7-Jun-79 219.5500 8-Jun-79 218.6000 11-Jun-79 218.8300 12-Jun-79 219.7000 13-Jun-79 220.1500 14-Jun-79 220.1800 15-Jun-79 218.8000 18-Jun-79 219.9000 19-Jun-79 218.6500 20-Jun-79 219.0000 21-Jun-79 218.9500 22-Jun-79 215.8000 25-Jun-79 213.2400 26-Jun-79 215.9000 27-Jun-79 216.4000 28-Jun-79 216.5500 29-Jun-79 217.8000 2-Jul-79 218.3000 3-Jul-79 218.4000 4-Jul-79 ND 5-Jul-79 217.0000 6-Jul-79 217.5000 9-Jul-79 217.5000 10-Jul-79 217.6800 11-Jul-79 217.4500 12-Jul-79 217.2500 13-Jul-79 217.3500 16-Jul-79 216.8000 17-Jul-79 216.4500 18-Jul-79 213.6000 19-Jul-79 216.0000 20-Jul-79 217.1000 23-Jul-79 215.7500 24-Jul-79 214.4000 25-Jul-79 215.2500 26-Jul-79 215.0300 27-Jul-79 215.4000 30-Jul-79 215.8000 31-Jul-79 216.7000 1-Aug-79 216.0500 2-Aug-79 216.5500 3-Aug-79 216.9000 6-Aug-79 216.4500 7-Aug-79 216.5000 8-Aug-79 216.5000 9-Aug-79 216.0500 10-Aug-79 215.9000 13-Aug-79 216.5800 14-Aug-79 216.8000 15-Aug-79 216.8500 16-Aug-79 216.9800 17-Aug-79 217.3000 20-Aug-79 217.3800 21-Aug-79 217.8500 22-Aug-79 219.5000 23-Aug-79 219.1200 24-Aug-79 219.2500 27-Aug-79 220.9500 28-Aug-79 220.5500 29-Aug-79 221.9300 30-Aug-79 219.9500 31-Aug-79 220.4000 3-Sep-79 ND 4-Sep-79 221.0500 5-Sep-79 221.5000 6-Sep-79 220.8500 7-Sep-79 220.8000 10-Sep-79 220.9000 11-Sep-79 221.5500 12-Sep-79 222.2000 13-Sep-79 223.6000 14-Sep-79 223.4000 17-Sep-79 223.4800 18-Sep-79 223.8000 19-Sep-79 223.4300 20-Sep-79 220.3000 21-Sep-79 222.4500 24-Sep-79 223.1000 25-Sep-79 222.8000 26-Sep-79 222.6000 27-Sep-79 223.5500 28-Sep-79 224.5000 1-Oct-79 225.2500 2-Oct-79 225.3500 3-Oct-79 224.4500 4-Oct-79 223.4000 5-Oct-79 224.1500 8-Oct-79 ND 9-Oct-79 226.0000 10-Oct-79 225.6000 11-Oct-79 226.4000 12-Oct-79 227.5000 15-Oct-79 229.8000 16-Oct-79 232.0000 17-Oct-79 234.1000 18-Oct-79 232.1800 19-Oct-79 230.6500 22-Oct-79 233.8000 23-Oct-79 235.4000 24-Oct-79 234.5000 25-Oct-79 233.9000 26-Oct-79 234.3000 29-Oct-79 235.9800 30-Oct-79 238.1000 31-Oct-79 237.8500 1-Nov-79 238.1500 2-Nov-79 234.5500 5-Nov-79 237.1000 6-Nov-79 ND 7-Nov-79 240.2000 8-Nov-79 241.3000 9-Nov-79 243.5500 12-Nov-79 ND 13-Nov-79 246.6000 14-Nov-79 243.3500 15-Nov-79 247.2000 16-Nov-79 246.5000 19-Nov-79 245.2500 20-Nov-79 246.2000 21-Nov-79 248.1000 22-Nov-79 ND 23-Nov-79 249.0000 26-Nov-79 250.8500 27-Nov-79 249.4500 28-Nov-79 248.9500 29-Nov-79 248.8500 30-Nov-79 249.5500 3-Dec-79 248.8900 4-Dec-79 247.5000 5-Dec-79 245.7000 6-Dec-79 243.6000 7-Dec-79 240.2000 10-Dec-79 232.6500 11-Dec-79 233.3000 12-Dec-79 237.9000 13-Dec-79 240.7000 14-Dec-79 242.5500 17-Dec-79 240.1000 18-Dec-79 239.4000 19-Dec-79 239.0000 20-Dec-79 236.6000 21-Dec-79 239.9000 24-Dec-79 239.8000 25-Dec-79 ND 26-Dec-79 239.0500 27-Dec-79 239.8000 28-Dec-79 240.5500 31-Dec-79 240.3000 1-Jan-80 ND 2-Jan-80 238.4500 3-Jan-80 238.3500 4-Jan-80 234.8000 7-Jan-80 231.5500 8-Jan-80 234.7500 9-Jan-80 234.9500 10-Jan-80 235.8000 11-Jan-80 236.0500 14-Jan-80 236.2000 15-Jan-80 239.6500 16-Jan-80 238.1500 17-Jan-80 239.9000 18-Jan-80 239.6500 21-Jan-80 241.0000 22-Jan-80 239.7000 23-Jan-80 237.2500 24-Jan-80 239.3500 25-Jan-80 239.6000 28-Jan-80 240.2200 29-Jan-80 239.3500 30-Jan-80 239.5000 31-Jan-80 239.3300 1-Feb-80 240.4500 4-Feb-80 240.2900 5-Feb-80 240.1000 6-Feb-80 240.1000 7-Feb-80 240.0900 8-Feb-80 241.6500 11-Feb-80 241.4000 12-Feb-80 ND 13-Feb-80 242.1000 14-Feb-80 243.3900 15-Feb-80 243.2000 18-Feb-80 ND 19-Feb-80 245.3600 20-Feb-80 246.0500 21-Feb-80 246.0900 22-Feb-80 247.4500 25-Feb-80 248.3500 26-Feb-80 248.0800 27-Feb-80 248.4500 28-Feb-80 248.4000 29-Feb-80 251.6500 3-Mar-80 247.8500 4-Mar-80 246.4000 5-Mar-80 246.8800 6-Mar-80 248.1000 7-Mar-80 247.8500 10-Mar-80 247.9300 11-Mar-80 247.3000 12-Mar-80 247.5000 13-Mar-80 248.1000 14-Mar-80 249.0500 17-Mar-80 248.9000 18-Mar-80 249.1000 19-Mar-80 248.6500 20-Mar-80 248.7000 21-Mar-80 248.9200 24-Mar-80 249.1500 25-Mar-80 249.0700 26-Mar-80 249.1000 27-Mar-80 249.9000 28-Mar-80 249.6500 31-Mar-80 249.9500 1-Apr-80 254.6500 2-Apr-80 257.1500 3-Apr-80 257.2000 4-Apr-80 258.7500 7-Apr-80 261.4000 8-Apr-80 258.2000 9-Apr-80 251.8000 10-Apr-80 249.5000 11-Apr-80 252.5000 14-Apr-80 251.3500 15-Apr-80 252.7000 16-Apr-80 249.1000 17-Apr-80 248.7000 18-Apr-80 249.4000 21-Apr-80 249.8000 22-Apr-80 250.0000 23-Apr-80 243.2500 24-Apr-80 244.6500 25-Apr-80 246.0000 28-Apr-80 241.3000 29-Apr-80 239.3000 30-Apr-80 239.3500 1-May-80 240.5000 2-May-80 240.3500 5-May-80 237.2000 6-May-80 231.8000 7-May-80 231.8500 8-May-80 233.6000 9-May-80 231.8000 12-May-80 226.8000 13-May-80 227.7500 14-May-80 227.2000 15-May-80 227.8000 16-May-80 229.6000 19-May-80 229.0000 20-May-80 226.7500 21-May-80 224.4000 22-May-80 224.0500 23-May-80 221.2500 26-May-80 ND 27-May-80 219.2000 28-May-80 223.5000 29-May-80 223.8000 30-May-80 223.0000 2-Jun-80 223.5500 3-Jun-80 222.7000 4-Jun-80 221.4000 5-Jun-80 220.3500 6-Jun-80 219.3000 9-Jun-80 216.3500 10-Jun-80 215.8000 11-Jun-80 217.7500 12-Jun-80 216.5000 13-Jun-80 216.0000 16-Jun-80 216.0000 17-Jun-80 216.0000 18-Jun-80 215.7500 19-Jun-80 216.3500 20-Jun-80 217.2000 23-Jun-80 216.0700 24-Jun-80 216.6000 25-Jun-80 217.9500 26-Jun-80 217.2000 27-Jun-80 217.5500 30-Jun-80 219.9000 1-Jul-80 219.5000 2-Jul-80 218.8000 3-Jul-80 219.0000 4-Jul-80 ND 7-Jul-80 217.9000 8-Jul-80 219.1000 9-Jul-80 218.1500 10-Jul-80 216.8500 11-Jul-80 217.7000 14-Jul-80 218.2500 15-Jul-80 219.4000 16-Jul-80 218.8000 17-Jul-80 218.5000 18-Jul-80 220.2700 21-Jul-80 220.3800 22-Jul-80 221.0000 23-Jul-80 224.1500 24-Jul-80 223.2000 25-Jul-80 225.4000 28-Jul-80 227.4000 29-Jul-80 226.8000 30-Jul-80 227.0500 31-Jul-80 227.4000 1-Aug-80 227.0000 4-Aug-80 226.0500 5-Aug-80 226.2500 6-Aug-80 225.3000 7-Aug-80 225.7000 8-Aug-80 226.3000 11-Aug-80 225.7800 12-Aug-80 222.9000 13-Aug-80 224.0000 14-Aug-80 224.4000 15-Aug-80 225.7500 18-Aug-80 226.3000 19-Aug-80 224.3800 20-Aug-80 224.1500 21-Aug-80 224.7500 22-Aug-80 223.8000 25-Aug-80 223.2000 26-Aug-80 219.4000 27-Aug-80 219.6800 28-Aug-80 218.0000 29-Aug-80 219.1000 1-Sep-80 ND 2-Sep-80 215.9300 3-Sep-80 216.7000 4-Sep-80 217.2000 5-Sep-80 218.0000 8-Sep-80 216.7000 9-Sep-80 216.8000 10-Sep-80 216.5500 11-Sep-80 214.4700 12-Sep-80 213.2000 15-Sep-80 212.6500 16-Sep-80 211.4700 17-Sep-80 211.9500 18-Sep-80 212.9800 19-Sep-80 210.8000 22-Sep-80 214.8000 23-Sep-80 218.1500 24-Sep-80 214.4500 25-Sep-80 215.0000 26-Sep-80 211.7000 29-Sep-80 212.4000 30-Sep-80 210.8500 1-Oct-80 208.5000 2-Oct-80 208.1500 3-Oct-80 207.6000 6-Oct-80 207.9000 7-Oct-80 208.8500 8-Oct-80 208.3500 9-Oct-80 208.9500 10-Oct-80 209.0000 13-Oct-80 ND 14-Oct-80 206.5000 15-Oct-80 207.3000 16-Oct-80 208.1500 17-Oct-80 208.2000 20-Oct-80 208.6500 21-Oct-80 207.9500 22-Oct-80 209.3500 23-Oct-80 210.4000 24-Oct-80 212.7500 27-Oct-80 213.7500 28-Oct-80 213.2500 29-Oct-80 210.0000 30-Oct-80 210.5000 31-Oct-80 211.0500 3-Nov-80 210.8000 4-Nov-80 ND 5-Nov-80 211.3500 6-Nov-80 212.6500 7-Nov-80 213.1000 10-Nov-80 209.5000 11-Nov-80 ND 12-Nov-80 213.1000 13-Nov-80 212.3000 14-Nov-80 212.9000 17-Nov-80 213.6000 18-Nov-80 213.3000 19-Nov-80 212.6500 20-Nov-80 213.7000 21-Nov-80 213.8000 24-Nov-80 213.3500 25-Nov-80 213.6500 26-Nov-80 216.4500 27-Nov-80 ND 28-Nov-80 216.6000 1-Dec-80 217.8500 2-Dec-80 216.5500 3-Dec-80 213.5500 4-Dec-80 211.0000 5-Dec-80 211.6000 8-Dec-80 208.5000 9-Dec-80 209.1000 10-Dec-80 210.1000 11-Dec-80 210.4500 12-Dec-80 210.5000 15-Dec-80 209.4000 16-Dec-80 208.7500 17-Dec-80 208.9000 18-Dec-80 209.5000 19-Dec-80 208.2000 22-Dec-80 207.6500 23-Dec-80 207.9000 24-Dec-80 208.0000 25-Dec-80 ND 26-Dec-80 208.4000 29-Dec-80 206.6500 30-Dec-80 203.1000 31-Dec-80 203.1000 1-Jan-81 ND 2-Jan-81 202.5000 5-Jan-81 199.0500 6-Jan-81 199.7000 7-Jan-81 201.0500 8-Jan-81 201.7000 9-Jan-81 203.0000 12-Jan-81 204.1000 13-Jan-81 203.3000 14-Jan-81 203.0500 15-Jan-81 201.7500 16-Jan-81 202.9000 19-Jan-81 202.3000 20-Jan-81 200.6500 21-Jan-81 199.2000 22-Jan-81 200.8500 23-Jan-81 202.7500 26-Jan-81 203.5500 27-Jan-81 202.5000 28-Jan-81 204.5000 29-Jan-81 204.6000 30-Jan-81 206.7000 2-Feb-81 203.1500 3-Feb-81 204.0500 4-Feb-81 202.9000 5-Feb-81 202.9500 6-Feb-81 203.8000 9-Feb-81 203.9000 10-Feb-81 203.9000 11-Feb-81 203.9000 12-Feb-81 ND 13-Feb-81 207.4500 16-Feb-81 ND 17-Feb-81 206.8000 18-Feb-81 206.5500 19-Feb-81 206.8000 20-Feb-81 206.8000 23-Feb-81 208.0500 24-Feb-81 207.0000 25-Feb-81 207.3000 26-Feb-81 207.9000 27-Feb-81 209.7000 2-Mar-81 211.1000 3-Mar-81 208.6000 4-Mar-81 208.6000 5-Mar-81 208.9000 6-Mar-81 209.0000 9-Mar-81 206.0000 10-Mar-81 207.0000 11-Mar-81 207.6000 12-Mar-81 207.6000 13-Mar-81 207.5500 16-Mar-81 207.2700 17-Mar-81 207.7000 18-Mar-81 207.6000 19-Mar-81 208.7500 20-Mar-81 208.2500 23-Mar-81