,Instrument,"U.S. government securities/Treasury constant maturities/Nominal"
  ,Maturity,"20-year"
  ,Frequency,"Monthly"
  ,Description,"Market yield on U.S. Treasury securities at 20-year constant maturity, quoted on investment basis"
  ,Note,"Yields on actively traded non-inflation-indexed issues adjusted to constant maturities. The 30-year Treasury constant maturity series was discontinued on February 18, 2002, and reintroduced on February 9, 2006. From February 18, 2002, to February 9, 2006, the U.S. Treasury published a factor for adjusting the daily nominal 20-year constant maturity in order to estimate a 30-year nominal rate. The historical adjustment factor can be found at www.treas.gov/offices/domestic-finance/debt-management/interest-rate/ltcompositeindex_historical.shtml. Source: U.S. Treasury."


DATE      , TCMNOMY20
04/1953, 3.08
05/1953, 3.18
06/1953, 3.21
07/1953, 3.12
08/1953, 3.10
09/1953, 3.07
10/1953, 2.95
11/1953, 2.95
12/1953, 2.89
01/1954, 2.80
02/1954, 2.72
03/1954, 2.61
04/1954, 2.60
05/1954, 2.66
06/1954, 2.64
07/1954, 2.57
08/1954, 2.58
09/1954, 2.60
10/1954, 2.61
11/1954, 2.65
12/1954, 2.67
01/1955, 2.75
02/1955, 2.83
03/1955, 2.84
04/1955, 2.85
05/1955, 2.87
06/1955, 2.86
07/1955, 2.94
08/1955, 3.01
09/1955, 3.00
10/1955, 2.93
11/1955, 2.93
12/1955, 2.98
01/1956, 2.94
02/1956, 2.91
03/1956, 2.99
04/1956, 3.14
05/1956, 3.06
06/1956, 3.00
07/1956, 3.08
08/1956, 3.22
09/1956, 3.28
10/1956, 3.26
11/1956, 3.37
12/1956, 3.45
01/1957, 3.41
02/1957, 3.30
03/1957, 3.32
04/1957, 3.40
05/1957, 3.49
06/1957, 3.65
07/1957, 3.72
08/1957, 3.75
09/1957, 3.73
10/1957, 3.76
11/1957, 3.61
12/1957, 3.38
01/1958, 3.27
02/1958, 3.31
03/1958, 3.29
04/1958, 3.17
05/1958, 3.17
06/1958, 3.23
07/1958, 3.39
08/1958, 3.65
09/1958, 3.80
10/1958, 3.81
11/1958, 3.76
12/1958, 3.86
01/1959, 3.95
02/1959, 3.96
03/1959, 3.99
04/1959, 4.06
05/1959, 4.13
06/1959, 4.14
07/1959, 4.16
08/1959, 4.15
09/1959, 4.29
10/1959, 4.19
11/1959, 4.20
12/1959, 4.33
01/1960, 4.42
02/1960, 4.28
03/1960, 4.14
04/1960, 4.23
05/1960, 4.20
06/1960, 4.04
07/1960, 3.91
08/1960, 3.84
09/1960, 3.86
10/1960, 3.92
11/1960, 3.96
12/1960, 3.91
01/1961, 3.90
02/1961, 3.84
03/1961, 3.81
04/1961, 3.81
05/1961, 3.74
06/1961, 3.89
07/1961, 3.93
08/1961, 4.04
09/1961, 4.04
10/1961, 4.01
11/1961, 4.00
12/1961, 4.07
01/1962, 4.10
02/1962, 4.12
03/1962, 4.04
04/1962, 3.93
05/1962, 3.92
06/1962, 3.96
07/1962, 4.05
08/1962, 4.01
09/1962, 4.00
10/1962, 3.94
11/1962, 3.93
12/1962, 3.92
01/1963, 3.93
02/1963, 3.97
03/1963, 3.98
04/1963, 4.03
05/1963, 4.02
06/1963, 4.02
07/1963, 4.06
08/1963, 4.03
09/1963, 4.09
10/1963, 4.12
11/1963, 4.16
12/1963, 4.19
01/1964, 4.19
02/1964, 4.17
03/1964, 4.22
04/1964, 4.24
05/1964, 4.20
06/1964, 4.17
07/1964, 4.16
08/1964, 4.18
09/1964, 4.20
10/1964, 4.20
11/1964, 4.17
12/1964, 4.18
01/1965, 4.19
02/1965, 4.21
03/1965, 4.20
04/1965, 4.20
05/1965, 4.21
06/1965, 4.21
07/1965, 4.21
08/1965, 4.25
09/1965, 4.30
10/1965, 4.32
11/1965, 4.40
12/1965, 4.50
01/1966, 4.52
02/1966, 4.71
03/1966, 4.72
04/1966, 4.65
05/1966, 4.69
06/1966, 4.73
07/1966, 4.84
08/1966, 4.95
09/1966, 4.94
10/1966, 4.83
11/1966, 4.87
12/1966, 4.76
01/1967, 4.51
02/1967, 4.61
03/1967, 4.56
04/1967, 4.64
05/1967, 4.90
06/1967, 4.99
07/1967, 5.01
08/1967, 5.12
09/1967, 5.16
10/1967, 5.36
11/1967, 5.66
12/1967, 5.59
01/1968, 5.39
02/1968, 5.38
03/1968, 5.59
04/1968, 5.46
05/1968, 5.55
06/1968, 5.40
07/1968, 5.29
08/1968, 5.23
09/1968, 5.28
10/1968, 5.44
11/1968, 5.56
12/1968, 5.88
01/1969, 5.99
02/1969, 6.11
03/1969, 6.22
04/1969, 6.03
05/1969, 6.11
06/1969, 6.28
07/1969, 6.27
08/1969, 6.22
09/1969, 6.55
10/1969, 6.49
11/1969, 6.74
12/1969, 6.91
01/1970, 6.92
02/1970, 6.67
03/1970, 6.72
04/1970, 6.85
05/1970, 7.24
06/1970, 7.34
07/1970, 6.92
08/1970, 7.07
09/1970, 6.88
10/1970, 6.88
11/1970, 6.58
12/1970, 6.28
01/1971, 6.18
02/1971, 6.14
03/1971, 5.94
04/1971, 6.00
05/1971, 6.32
06/1971, 6.38
07/1971, 6.38
08/1971, 6.27
09/1971, 6.05
10/1971, 5.92
11/1971, 5.86
12/1971, 6.00
01/1972, 6.01
02/1972, 6.06
03/1972, 6.06
04/1972, 6.16
05/1972, 6.07
06/1972, 6.01
07/1972, 6.01
08/1972, 5.94
09/1972, 6.05
10/1972, 6.00
11/1972, 5.79
12/1972, 5.96
01/1973, 6.78
02/1973, 6.88
03/1973, 6.91
04/1973, 6.86
05/1973, 6.99
06/1973, 7.06
07/1973, 7.29
08/1973, 7.61
09/1973, 7.25
10/1973, 7.18
11/1973, 7.30
12/1973, 7.29
01/1974, 7.47
02/1974, 7.46
03/1974, 7.73
04/1974, 8.01
05/1974, 8.14
06/1974, 8.10
07/1974, 8.26
08/1974, 8.60
09/1974, 8.59
10/1974, 8.37
11/1974, 7.98
12/1974, 7.91
01/1975, 7.88
02/1975, 7.71
03/1975, 7.99
04/1975, 8.36
05/1975, 8.22
06/1975, 8.04
07/1975, 8.17
08/1975, 8.50
09/1975, 8.57
10/1975, 8.35
11/1975, 8.28
12/1975, 8.23
01/1976, 8.01
02/1976, 8.03
03/1976, 7.97
04/1976, 7.86
05/1976, 8.13
06/1976, 8.03
07/1976, 8.00
08/1976, 7.91
09/1976, 7.78
10/1976, 7.70
11/1976, 7.64
12/1976, 7.30
01/1977, 7.48
02/1977, 7.64
03/1977, 7.73
04/1977, 7.67
05/1977, 7.74
06/1977, 7.64
07/1977, 7.60
08/1977, 7.64
09/1977, 7.57
10/1977, 7.71
11/1977, 7.76
12/1977, 7.87
01/1978, 8.14
02/1978, 8.22
03/1978, 8.21
04/1978, 8.32
05/1978, 8.44
06/1978, 8.53
07/1978, 8.69
08/1978, 8.45
09/1978, 8.47
10/1978, 8.69
11/1978, 8.75
12/1978, 8.90
01/1979, 8.98
02/1979, 9.03
03/1979, 9.08
04/1979, 9.12
05/1979, 9.21
06/1979, 8.91
07/1979, 8.92
08/1979, 8.97
09/1979, 9.21
10/1979, 9.99
11/1979, 10.37
12/1979, 10.18
01/1980, 10.65
02/1980, 12.21
03/1980, 12.49
04/1980, 11.42
05/1980, 10.44
06/1980, 9.89
07/1980, 10.32
08/1980, 11.07
09/1980, 11.47
10/1980, 11.75
11/1980, 12.44
12/1980, 12.49
01/1981, 12.29
02/1981, 12.98
03/1981, 12.94
04/1981, 13.46
05/1981, 13.82
06/1981, 13.20
07/1981, 13.92
08/1981, 14.52
09/1981, 15.07
10/1981, 15.13
11/1981, 13.56
12/1981, 13.73
01/1982, 14.57
02/1982, 14.48
03/1982, 13.75
04/1982, 13.57
05/1982, 13.46
06/1982, 14.18
07/1982, 13.76
08/1982, 12.91
09/1982, 12.16
10/1982, 10.97
11/1982, 10.57
12/1982, 10.62
01/1983, 10.78
02/1983, 11.03
03/1983, 10.80
04/1983, 10.63
05/1983, 10.67
06/1983, 11.12
07/1983, 11.59
08/1983, 11.96
09/1983, 11.82
10/1983, 11.77
11/1983, 11.92
12/1983, 12.02
01/1984, 11.82
02/1984, 12.00
03/1984, 12.45
04/1984, 12.65
05/1984, 13.43
06/1984, 13.54
07/1984, 13.36
08/1984, 12.71
09/1984, 12.42
10/1984, 12.04
11/1984, 11.66
12/1984, 11.64
01/1985, 11.58
02/1985, 11.70
03/1985, 12.06
04/1985, 11.69
05/1985, 11.19
06/1985, 10.57
07/1985, 10.68
08/1985, 10.73
09/1985, 10.80
10/1985, 10.67
11/1985, 10.24
12/1985, 9.75
01/1986, 9.59
02/1986, 9.08
03/1986, 8.09
04/1986, 7.50
05/1986, 7.81
06/1986, 7.69
07/1986, 7.29
08/1986, 7.28
09/1986, 7.56
10/1986, 7.61
11/1986, 7.42
12/1986, 7.28
01/1987, ND
02/1987, ND
03/1987, ND
04/1987, ND
05/1987, ND
06/1987, ND
07/1987, ND
08/1987, ND
09/1987, ND
10/1987, ND
11/1987, ND
12/1987, ND
01/1988, ND
02/1988, ND
03/1988, ND
04/1988, ND
05/1988, ND
06/1988, ND
07/1988, ND
08/1988, ND
09/1988, ND
10/1988, ND
11/1988, ND
12/1988, ND
01/1989, ND
02/1989, ND
03/1989, ND
04/1989, ND
05/1989, ND
06/1989, ND
07/1989, ND
08/1989, ND
09/1989, ND
10/1989, ND
11/1989, ND
12/1989, ND
01/1990, ND
02/1990, ND
03/1990, ND
04/1990, ND
05/1990, ND
06/1990, ND
07/1990, ND
08/1990, ND
09/1990, ND
10/1990, ND
11/1990, ND
12/1990, ND
01/1991, ND
02/1991, ND
03/1991, ND
04/1991, ND
05/1991, ND
06/1991, ND
07/1991, ND
08/1991, ND
09/1991, ND
10/1991, ND
11/1991, ND
12/1991, ND
01/1992, ND
02/1992, ND
03/1992, ND
04/1992, ND
05/1992, ND
06/1992, ND
07/1992, ND
08/1992, ND
09/1992, ND
10/1992, ND
11/1992, ND
12/1992, ND
01/1993, ND
02/1993, ND
03/1993, ND
04/1993, ND
05/1993, ND
06/1993, ND
07/1993, ND
08/1993, ND
09/1993, ND
10/1993, 6.07
11/1993, 6.38
12/1993, 6.40
01/1994, 6.39
02/1994, 6.57
03/1994, 7.00
04/1994, 7.40
05/1994, 7.54
06/1994, 7.51
07/1994, 7.67
08/1994, 7.62
09/1994, 7.87
10/1994, 8.08
11/1994, 8.20
12/1994, 7.99
01/1995, 7.97
02/1995, 7.73
03/1995, 7.57
04/1995, 7.45
05/1995, 7.01
06/1995, 6.59
07/1995, 6.74
08/1995, 6.92
09/1995, 6.65
10/1995, 6.45
11/1995, 6.33
12/1995, 6.12
01/1996, 6.11
02/1996, 6.30
03/1996, 6.74
04/1996, 6.98
05/1996, 7.11
06/1996, 7.22
07/1996, 7.14
08/1996, 6.97
09/1996, 7.17
10/1996, 6.90
11/1996, 6.58
12/1996, 6.65
01/1997, 6.91
02/1997, 6.77
03/1997, 7.05
04/1997, 7.20
05/1997, 7.02
06/1997, 6.84
07/1997, 6.56
08/1997, 6.65
09/1997, 6.56
10/1997, 6.38
11/1997, 6.20
12/1997, 6.07
01/1998, 5.88
02/1998, 5.96
03/1998, 6.01
04/1998, 6.00
05/1998, 6.01
06/1998, 5.80
07/1998, 5.78
08/1998, 5.66
09/1998, 5.38
10/1998, 5.30
11/1998, 5.48
12/1998, 5.36
01/1999, 5.45
02/1999, 5.66
03/1999, 5.87
04/1999, 5.82
05/1999, 6.08
06/1999, 6.36
07/1999, 6.28
08/1999, 6.43
09/1999, 6.50
10/1999, 6.66
11/1999, 6.48
12/1999, 6.69
01/2000, 6.86
02/2000, 6.54
03/2000, 6.38
04/2000, 6.18
05/2000, 6.55
06/2000, 6.28
07/2000, 6.20
08/2000, 6.02
09/2000, 6.09
10/2000, 6.04
11/2000, 5.98
12/2000, 5.64
01/2001, 5.65
02/2001, 5.62
03/2001, 5.49
04/2001, 5.78
05/2001, 5.92
06/2001, 5.82
07/2001, 5.75
08/2001, 5.58
09/2001, 5.53
10/2001, 5.34
11/2001, 5.33
12/2001, 5.76
01/2002, 5.69
02/2002, 5.61
03/2002, 5.93
04/2002, 5.85
05/2002, 5.81
06/2002, 5.65
07/2002, 5.51
08/2002, 5.19
09/2002, 4.87
10/2002, 5.00
11/2002, 5.04
12/2002, 5.01
01/2003, 5.02
02/2003, 4.87
03/2003, 4.82
04/2003, 4.91
05/2003, 4.52
06/2003, 4.34
07/2003, 4.92
08/2003, 5.39
09/2003, 5.21
10/2003, 5.21
11/2003, 5.17
12/2003, 5.11
01/2004, 5.01
02/2004, 4.94
03/2004, 4.72
04/2004, 5.16
05/2004, 5.46
06/2004, 5.45
07/2004, 5.24
08/2004, 5.07
09/2004, 4.89
10/2004, 4.85
11/2004, 4.89
12/2004, 4.88
01/2005, 4.77
02/2005, 4.61
03/2005, 4.89
04/2005, 4.75
05/2005, 4.56
06/2005, 4.35
07/2005, 4.48
08/2005, 4.53
09/2005, 4.51
10/2005, 4.74
11/2005, 4.83
12/2005, 4.73
01/2006, 4.65
02/2006, 4.73
03/2006, 4.91
04/2006, 5.22
05/2006, 5.35
06/2006, 5.29
07/2006, 5.25
08/2006, 5.08
09/2006, 4.93
10/2006, 4.94
11/2006, 4.78
12/2006, 4.78
01/2007, 4.95
02/2007, 4.93
03/2007, 4.81
04/2007, 4.95
05/2007, 4.98
06/2007, 5.29
07/2007, 5.19
08/2007, 5.00
09/2007, 4.84
10/2007, 4.83
11/2007, 4.56
12/2007, 4.57
01/2008, 4.35
02/2008, 4.49
03/2008, 4.36
04/2008, 4.44
05/2008, 4.60
06/2008, 4.74
07/2008, 4.62
08/2008, 4.53
09/2008, 4.32
10/2008, 4.45
11/2008, 4.27
12/2008, 3.18