,Instrument,"U.S. government securities/Treasury bills (secondary market)"
  ,Maturity,"1-year"
  ,Frequency,"Monthly"
  ,Description,"12-MONTH TREASURY BILL SECONDARY MARKET RATE QUOTED ON DISCOUNT BASIS"
  ,Status,"Discontinued"
  ,Note,"Annualized using a 360-day year or bank interest."
  ,Note,"On a discount basis."
  ,Note,"Series ended August 24, 2001."


DATE      , TBY1
07/1959, 4.34
08/1959, 4.31
09/1959, 4.83
10/1959, 4.69
11/1959, 4.54
12/1959, 4.99
01/1960, 4.95
02/1960, 4.45
03/1960, 3.68
04/1960, 3.83
05/1960, 4.01
06/1960, 3.10
07/1960, 3.03
08/1960, 2.82
09/1960, 2.86
10/1960, 2.92
11/1960, 2.87
12/1960, 2.64
01/1961, 2.63
02/1961, 2.75
03/1961, 2.76
04/1961, 2.74
05/1961, 2.72
06/1961, 2.80
07/1961, 2.79
08/1961, 2.91
09/1961, 2.88
10/1961, 2.90
11/1961, 2.90
12/1961, 2.97
01/1962, 3.19
02/1962, 3.21
03/1962, 2.98
04/1962, 2.90
05/1962, 2.91
06/1962, 2.89
07/1962, 3.17
08/1962, 3.10
09/1962, 2.99
10/1962, 2.90
11/1962, 2.94
12/1962, 2.94
01/1963, 3.00
02/1963, 3.00
03/1963, 2.97
04/1963, 3.03
05/1963, 3.06
06/1963, 3.11
07/1963, 3.40
08/1963, 3.50
09/1963, 3.57
10/1963, 3.61
11/1963, 3.67
12/1963, 3.69
01/1964, 3.68
02/1964, 3.71
03/1964, 3.78
04/1964, 3.75
05/1964, 3.71
06/1964, 3.70
07/1964, 3.64
08/1964, 3.67
09/1964, 3.73
10/1964, 3.79
11/1964, 3.86
12/1964, 3.96
01/1965, 3.91
02/1965, 4.00
03/1965, 4.02
04/1965, 4.00
05/1965, 3.96
06/1965, 3.89
07/1965, 3.89
08/1965, 3.96
09/1965, 4.09
10/1965, 4.16
11/1965, 4.23
12/1965, 4.56
01/1966, 4.69
02/1966, 4.81
03/1966, 4.81
04/1966, 4.76
05/1966, 4.85
06/1966, 4.78
07/1966, 4.94
08/1966, 5.34
09/1966, 5.80
10/1966, 5.52
11/1966, 5.49
12/1966, 5.00
01/1967, 4.61
02/1967, 4.57
03/1967, 4.19
04/1967, 3.90
05/1967, 3.89
06/1967, 4.16
07/1967, 4.90
08/1967, 5.05
09/1967, 5.10
10/1967, 5.22
11/1967, 5.39
12/1967, 5.59
01/1968, 5.30
02/1968, 5.24
03/1968, 5.42
04/1968, 5.47
05/1968, 5.84
06/1968, 5.68
07/1968, 5.39
08/1968, 5.15
09/1968, 5.18
10/1968, 5.33
11/1968, 5.51
12/1968, 5.97
01/1969, 6.07
02/1969, 6.21
03/1969, 6.20
04/1969, 6.04
05/1969, 6.11
06/1969, 6.88
07/1969, 7.19
08/1969, 7.28
09/1969, 7.35
10/1969, 7.21
11/1969, 7.36
12/1969, 7.61
01/1970, 7.51
02/1970, 7.05
03/1970, 6.50
04/1970, 6.53
05/1970, 7.12
06/1970, 7.07
07/1970, 6.62
08/1970, 6.55
09/1970, 6.39
10/1970, 6.23
11/1970, 5.39
12/1970, 4.84
01/1971, 4.40
02/1971, 3.84
03/1971, 3.60
04/1971, 4.09
05/1971, 4.64
06/1971, 5.33
07/1971, 5.74
08/1971, 5.52
09/1971, 5.19
10/1971, 4.75
11/1971, 4.49
12/1971, 4.39
01/1972, 3.82
02/1972, 4.06
03/1972, 4.43
04/1972, 4.65
05/1972, 4.46
06/1972, 4.71
07/1972, 4.90
08/1972, 4.90
09/1972, 5.44
10/1972, 5.39
11/1972, 5.20
12/1972, 5.28
01/1973, 5.58
02/1973, 5.93
03/1973, 6.53
04/1973, 6.51
05/1973, 6.63
06/1973, 7.05
07/1973, 7.97
08/1973, 8.32
09/1973, 8.07
10/1973, 7.17
11/1973, 7.40
12/1973, 7.01
01/1974, 7.01
02/1974, 6.51
03/1974, 7.34
04/1974, 8.08
05/1974, 8.21
06/1974, 8.16
07/1974, 8.04
08/1974, 8.88
09/1974, 8.52
10/1974, 7.59
11/1974, 7.29
12/1974, 6.79
01/1975, 6.27
02/1975, 5.56
03/1975, 5.70
04/1975, 6.40
05/1975, 5.91
06/1975, 5.86
07/1975, 6.64
08/1975, 7.16
09/1975, 7.20
10/1975, 6.48
11/1975, 6.07
12/1975, 6.16
01/1976, 5.44
02/1976, 5.53
03/1976, 5.82
04/1976, 5.54
05/1976, 5.98
06/1976, 6.12
07/1976, 5.82
08/1976, 5.64
09/1976, 5.50
10/1976, 5.19
11/1976, 5.00
12/1976, 4.64
01/1977, 5.00
02/1977, 5.16
03/1977, 5.19
04/1977, 5.10
05/1977, 5.43
06/1977, 5.41
07/1977, 5.57
08/1977, 5.97
09/1977, 6.13
10/1977, 6.52
11/1977, 6.52
12/1977, 6.52
01/1978, 6.80
02/1978, 6.86
03/1978, 6.82
04/1978, 6.96
05/1978, 7.28
06/1978, 7.53
07/1978, 7.79
08/1978, 7.73
09/1978, 8.01
10/1978, 8.45
11/1978, 9.20
12/1978, 9.44
01/1979, 9.54
02/1979, 9.39
03/1979, 9.38
04/1979, 9.28
05/1979, 9.27
06/1979, 8.81
07/1979, 8.87
08/1979, 9.16
09/1979, 9.89
10/1979, 11.23
11/1979, 11.22
12/1979, 10.92
01/1980, 10.96
02/1980, 12.46
03/1980, 14.03
04/1980, 11.97
05/1980, 8.66
06/1980, 7.54
07/1980, 8.00
08/1980, 9.39
09/1980, 10.48
10/1980, 11.30
11/1980, 12.66
12/1980, 13.23
01/1981, 12.62
02/1981, 12.99
03/1981, 12.28
04/1981, 12.79
05/1981, 14.29
06/1981, 13.22
07/1981, 13.91
08/1981, 14.70
09/1981, 14.53
10/1981, 13.62
11/1981, 11.20
12/1981, 11.57
01/1982, 12.77
02/1982, 13.11
03/1982, 12.47
04/1982, 12.50
05/1982, 11.98
06/1982, 12.57
07/1982, 11.90
08/1982, 10.37
09/1982, 9.92
10/1982, 8.63
11/1982, 8.44
12/1982, 8.23
01/1983, 8.01
02/1983, 8.28
03/1983, 8.36
04/1983, 8.29
05/1983, 8.23
06/1983, 8.87
07/1983, 9.34
08/1983, 9.60
09/1983, 9.27
10/1983, 8.98
11/1983, 9.08
12/1983, 9.24
01/1984, 9.07
02/1984, 9.20
03/1984, 9.67
04/1984, 9.95
05/1984, 10.57
06/1984, 10.93
07/1984, 10.89
08/1984, 10.71
09/1984, 10.51
10/1984, 9.93
11/1984, 9.01
12/1984, 8.60
01/1985, 8.33
02/1985, 8.56
03/1985, 9.06
04/1985, 8.44
05/1985, 7.85
06/1985, 7.27
07/1985, 7.31
08/1985, 7.48
09/1985, 7.50
10/1985, 7.45
11/1985, 7.33
12/1985, 7.16
01/1986, 7.21
02/1986, 7.11
03/1986, 6.59
04/1986, 6.06
05/1986, 6.25
06/1986, 6.32
07/1986, 5.90
08/1986, 5.60
09/1986, 5.45
10/1986, 5.41
11/1986, 5.48
12/1986, 5.55
01/1987, 5.46
02/1987, 5.63
03/1987, 5.68
04/1987, 6.09
05/1987, 6.52
06/1987, 6.35
07/1987, 6.24
08/1987, 6.54
09/1987, 7.11
10/1987, 7.05
11/1987, 6.50
12/1987, 6.69
01/1988, 6.52
02/1988, 6.21
03/1988, 6.28
04/1988, 6.56
05/1988, 6.90
06/1988, 6.99
07/1988, 7.22
08/1988, 7.59
09/1988, 7.53
10/1988, 7.54
11/1988, 7.87
12/1988, 8.32
01/1989, 8.37
02/1989, 8.55
03/1989, 8.82
04/1989, 8.64
05/1989, 8.31
06/1989, 7.84
07/1989, 7.36
08/1989, 7.61
09/1989, 7.65
10/1989, 7.45
11/1989, 7.25
12/1989, 7.21
01/1990, 7.38
02/1990, 7.55
03/1990, 7.76
04/1990, 7.80
05/1990, 7.73
06/1990, 7.53
07/1990, 7.40
08/1990, 7.26
09/1990, 7.24
10/1990, 7.06
11/1990, 6.85
12/1990, 6.61
01/1991, 6.25
02/1991, 5.91
03/1991, 6.00
04/1991, 5.85
05/1991, 5.76
06/1991, 5.96
07/1991, 5.91
08/1991, 5.45
09/1991, 5.26
10/1991, 5.04
11/1991, 4.64
12/1991, 4.17
01/1992, 3.95
02/1992, 4.08
03/1992, 4.40
04/1992, 4.09
05/1992, 3.99
06/1992, 3.98
07/1992, 3.45
08/1992, 3.33
09/1992, 3.06
10/1992, 3.17
11/1992, 3.52
12/1992, 3.55
01/1993, 3.35
02/1993, 3.25
03/1993, 3.20
04/1993, 3.11
05/1993, 3.23
06/1993, 3.39
07/1993, 3.33
08/1993, 3.30
09/1993, 3.22
10/1993, 3.25
11/1993, 3.42
12/1993, 3.45
01/1994, 3.39
02/1994, 3.69
03/1994, 4.11
04/1994, 4.57
05/1994, 5.03
06/1994, 4.98
07/1994, 5.17
08/1994, 5.25
09/1994, 5.43
10/1994, 5.75
11/1994, 6.13
12/1994, 6.67
01/1995, 6.59
02/1995, 6.28
03/1995, 6.03
04/1995, 5.88
05/1995, 5.65
06/1995, 5.33
07/1995, 5.28
08/1995, 5.43
09/1995, 5.31
10/1995, 5.28
11/1995, 5.14
12/1995, 5.03
01/1996, 4.82
02/1996, 4.69
03/1996, 5.06
04/1996, 5.23
05/1996, 5.33
06/1996, 5.48
07/1996, 5.52
08/1996, 5.35
09/1996, 5.50
10/1996, 5.25
11/1996, 5.14
12/1996, 5.18
01/1997, 5.30
02/1997, 5.23
03/1997, 5.47
04/1997, 5.64
05/1997, 5.54
06/1997, 5.38
07/1997, 5.24
08/1997, 5.27
09/1997, 5.23
10/1997, 5.17
11/1997, 5.17
12/1997, 5.24
01/1998, 4.98
02/1998, 5.04
03/1998, 5.11
04/1998, 5.10
05/1998, 5.16
06/1998, 5.13
07/1998, 5.08
08/1998, 4.94
09/1998, 4.50
10/1998, 3.95
11/1998, 4.33
12/1998, 4.32
01/1999, 4.31
02/1999, 4.48
03/1999, 4.53
04/1999, 4.45
05/1999, 4.60
06/1999, 4.82
07/1999, 4.75
08/1999, 4.91
09/1999, 4.96
10/1999, 5.12
11/1999, 5.24
12/1999, 5.51
01/2000, 5.75
02/2000, 5.84
03/2000, 5.86
04/2000, 5.80
05/2000, 5.94
06/2000, 5.83
07/2000, 5.75
08/2000, 5.87
09/2000, 5.79
10/2000, 5.72
11/2000, 5.84
12/2000, 5.33
01/2001, 4.63
02/2001, 4.51
03/2001, 4.11
04/2001, 3.80
05/2001, 3.60
06/2001, 3.37
07/2001, 3.39
08/2001, 3.26
09/2001, ND
10/2001, ND
11/2001, ND
12/2001, ND
01/2002, ND
02/2002, ND
03/2002, ND
04/2002, ND
05/2002, ND
06/2002, ND
07/2002, ND
08/2002, ND
09/2002, ND
10/2002, ND
11/2002, ND
12/2002, ND
01/2003, ND
02/2003, ND
03/2003, ND
04/2003, ND
05/2003, ND
06/2003, ND
07/2003, ND
08/2003, ND
09/2003, ND
10/2003, ND
11/2003, ND
12/2003, ND
01/2004, ND
02/2004, ND
03/2004, ND
04/2004, ND
05/2004, ND
06/2004, ND
07/2004, ND
08/2004, ND
09/2004, ND
10/2004, ND
11/2004, ND
12/2004, ND
01/2005, ND
02/2005, ND
03/2005, ND
04/2005, ND
05/2005, ND
06/2005, ND
07/2005, ND
08/2005, ND
09/2005, ND
10/2005, ND
11/2005, ND
12/2005, ND
01/2006, ND
02/2006, ND
03/2006, ND
04/2006, ND
05/2006, ND
06/2006, ND
07/2006, ND
08/2006, ND
09/2006, ND
10/2006, ND
11/2006, ND
12/2006, ND
01/2007, ND
02/2007, ND
03/2007, ND
04/2007, ND
05/2007, ND
06/2007, ND
07/2007, ND
08/2007, ND
09/2007, ND
10/2007, ND
11/2007, ND
12/2007, ND
01/2008, ND
02/2008, ND
03/2008, ND
04/2008, ND
05/2008, ND