http://www.federalreserve.gov/releases/h15/data.htm ,Instrument,"U.S. government securities/Treasury constant maturities/Nominal" ,Maturity,"3-month" ,Frequency,"Monthly" ,Description,"Market yield on U.S. Treasury securities at 3-month 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.treasury.gov/resource-center/data-chart-center/interest-rates/. Source: U.S. Treasury." DATE , TCMNOMM3 01/1934, 0.72 02/1934, 0.62 03/1934, 0.24 04/1934, 0.15 05/1934, 0.16 06/1934, 0.15 07/1934, 0.15 08/1934, 0.19 09/1934, 0.21 10/1934, 0.27 11/1934, 0.25 12/1934, 0.23 01/1935, 0.20 02/1935, 0.19 03/1935, 0.15 04/1935, 0.15 05/1935, 0.15 06/1935, 0.15 07/1935, 0.15 08/1935, 0.16 09/1935, 0.20 10/1935, 0.20 11/1935, 0.16 12/1935, 0.15 01/1936, 0.20 02/1936, 0.20 03/1936, 0.20 04/1936, 0.20 05/1936, 0.20 06/1936, 0.20 07/1936, 0.15 08/1936, 0.20 09/1936, 0.16 10/1936, 0.13 11/1936, 0.11 12/1936, 0.12 01/1937, 0.17 02/1937, 0.15 03/1937, 0.38 04/1937, 0.56 05/1937, 0.41 06/1937, 0.36 07/1937, 0.28 08/1937, 0.29 09/1937, 0.31 10/1937, 0.20 11/1937, 0.09 12/1937, 0.11 01/1938, 0.10 02/1938, 0.08 03/1938, 0.08 04/1938, 0.09 05/1938, 0.05 06/1938, 0.05 07/1938, 0.07 08/1938, 0.06 09/1938, 0.08 10/1938, 0.05 11/1938, 0.04 12/1938, 0.03 01/1939, 0.03 02/1939, 0.03 03/1939, 0.03 04/1939, 0.03 05/1939, 0.03 06/1939, 0.03 07/1939, 0.04 08/1939, 0.05 09/1939, 0.14 10/1939, 0.05 11/1939, 0.05 12/1939, 0.04 01/1940, 0.01 02/1940, 0.02 03/1940, 0.02 04/1940, 0.02 05/1940, 0.06 06/1940, 0.10 07/1940, 0.05 08/1940, 0.04 09/1940, 0.05 10/1940, 0.02 11/1940, 0.02 12/1940, 0.02 01/1941, 0.02 02/1941, 0.04 03/1941, 0.11 04/1941, 0.10 05/1941, 0.11 06/1941, 0.12 07/1941, 0.12 08/1941, 0.13 09/1941, 0.10 10/1941, 0.09 11/1941, 0.28 12/1941, 0.33 01/1942, 0.27 02/1942, 0.25 03/1942, 0.25 04/1942, 0.32 05/1942, 0.37 06/1942, 0.37 07/1942, 0.38 08/1942, 0.38 09/1942, 0.38 10/1942, 0.38 11/1942, 0.38 12/1942, 0.38 01/1943, 0.38 02/1943, 0.38 03/1943, 0.38 04/1943, 0.38 05/1943, 0.38 06/1943, 0.38 07/1943, 0.38 08/1943, 0.38 09/1943, 0.38 10/1943, 0.38 11/1943, 0.38 12/1943, 0.38 01/1944, 0.38 02/1944, 0.38 03/1944, 0.38 04/1944, 0.38 05/1944, 0.38 06/1944, 0.38 07/1944, 0.38 08/1944, 0.38 09/1944, 0.38 10/1944, 0.38 11/1944, 0.38 12/1944, 0.38 01/1945, 0.38 02/1945, 0.38 03/1945, 0.38 04/1945, 0.38 05/1945, 0.38 06/1945, 0.38 07/1945, 0.38 08/1945, 0.38 09/1945, 0.38 10/1945, 0.38 11/1945, 0.38 12/1945, 0.38 01/1946, 0.38 02/1946, 0.38 03/1946, 0.38 04/1946, 0.38 05/1946, 0.38 06/1946, 0.38 07/1946, 0.38 08/1946, 0.38 09/1946, 0.38 10/1946, 0.38 11/1946, 0.38 12/1946, 0.38 01/1947, 0.38 02/1947, 0.38 03/1947, 0.38 04/1947, 0.38 05/1947, 0.38 06/1947, 0.38 07/1947, 0.66 08/1947, 0.75 09/1947, 0.80 10/1947, 0.85 11/1947, 0.92 12/1947, 0.95 01/1948, 0.97 02/1948, 1.00 03/1948, 1.00 04/1948, 1.00 05/1948, 1.00 06/1948, 1.00 07/1948, 1.00 08/1948, 1.06 09/1948, 1.09 10/1948, 1.12 11/1948, 1.14 12/1948, 1.16 01/1949, 1.17 02/1949, 1.17 03/1949, 1.17 04/1949, 1.17 05/1949, 1.17 06/1949, 1.17 07/1949, 1.02 08/1949, 1.04 09/1949, 1.07 10/1949, 1.05 11/1949, 1.08 12/1949, 1.10 01/1950, 1.07 02/1950, 1.12 03/1950, 1.12 04/1950, 1.15 05/1950, 1.16 06/1950, 1.15 07/1950, 1.16 08/1950, 1.20 09/1950, 1.30 10/1950, 1.31 11/1950, 1.36 12/1950, 1.34 01/1951, 1.34 02/1951, 1.36 03/1951, 1.40 04/1951, 1.47 05/1951, 1.55 06/1951, 1.45 07/1951, 1.56 08/1951, 1.62 09/1951, 1.63 10/1951, 1.54 11/1951, 1.56 12/1951, 1.73 01/1952, 1.57 02/1952, 1.54 03/1952, 1.59 04/1952, 1.57 05/1952, 1.67 06/1952, 1.70 07/1952, 1.81 08/1952, 1.83 09/1952, 1.71 10/1952, 1.74 11/1952, 1.85 12/1952, 2.09 01/1953, 1.96 02/1953, 1.97 03/1953, 2.01 04/1953, 2.19 05/1953, 2.16 06/1953, 2.11 07/1953, 2.04 08/1953, 2.04 09/1953, 1.79 10/1953, 1.38 11/1953, 1.44 12/1953, 1.60 01/1954, 1.18 02/1954, 0.97 03/1954, 1.03 04/1954, 0.97 05/1954, 0.76 06/1954, 0.64 07/1954, 0.72 08/1954, 0.92 09/1954, 1.01 10/1954, 0.98 11/1954, 0.93 12/1954, 1.15 01/1955, 1.22 02/1955, 1.17 03/1955, 1.28 04/1955, 1.59 05/1955, 1.45 06/1955, 1.41 07/1955, 1.60 08/1955, 1.90 09/1955, 2.07 10/1955, 2.23 11/1955, 2.24 12/1955, 2.54 01/1956, 2.41 02/1956, 2.32 03/1956, 2.25 04/1956, 2.60 05/1956, 2.61 06/1956, 2.49 07/1956, 2.31 08/1956, 2.60 09/1956, 2.84 10/1956, 2.90 11/1956, 2.99 12/1956, 3.21 01/1957, 3.11 02/1957, 3.10 03/1957, 3.08 04/1957, 3.07 05/1957, 3.06 06/1957, 3.29 07/1957, 3.16 08/1957, 3.37 09/1957, 3.53 10/1957, 3.58 11/1957, 3.31 12/1957, 3.04 01/1958, 2.44 02/1958, 1.53 03/1958, 1.30 04/1958, 1.13 05/1958, 0.91 06/1958, 0.83 07/1958, 0.91 08/1958, 1.69 09/1958, 2.44 10/1958, 2.63 11/1958, 2.67 12/1958, 2.77 01/1959, 2.82 02/1959, 2.70 03/1959, 2.80 04/1959, 2.95 05/1959, 2.84 06/1959, 3.21 07/1959, 3.20 08/1959, 3.38 09/1959, 4.04 10/1959, 4.05 11/1959, 4.15 12/1959, 4.49 01/1960, 4.35 02/1960, 3.96 03/1960, 3.31 04/1960, 3.23 05/1960, 3.29 06/1960, 2.46 07/1960, 2.30 08/1960, 2.30 09/1960, 2.48 10/1960, 2.30 11/1960, 2.37 12/1960, 2.25 01/1961, 2.24 02/1961, 2.42 03/1961, 2.39 04/1961, 2.29 05/1961, 2.29 06/1961, 2.33 07/1961, 2.24 08/1961, 2.39 09/1961, 2.28 10/1961, 2.30 11/1961, 2.48 12/1961, 2.60 01/1962, 2.72 02/1962, 2.73 03/1962, 2.72 04/1962, 2.73 05/1962, 2.69 06/1962, 2.73 07/1962, 2.92 08/1962, 2.82 09/1962, 2.78 10/1962, 2.74 11/1962, 2.83 12/1962, 2.87 01/1963, 2.91 02/1963, 2.92 03/1963, 2.89 04/1963, 2.90 05/1963, 2.93 06/1963, 2.99 07/1963, 3.18 08/1963, 3.32 09/1963, 3.38 10/1963, 3.45 11/1963, 3.52 12/1963, 3.52 01/1964, 3.52 02/1964, 3.53 03/1964, 3.54 04/1964, 3.47 05/1964, 3.48 06/1964, 3.48 07/1964, 3.46 08/1964, 3.50 09/1964, 3.53 10/1964, 3.57 11/1964, 3.64 12/1964, 3.84 01/1965, 3.81 02/1965, 3.93 03/1965, 3.93 04/1965, 3.93 05/1965, 3.89 06/1965, 3.80 07/1965, 3.84 08/1965, 3.84 09/1965, 3.92 10/1965, 4.03 11/1965, 4.09 12/1965, 4.38 01/1966, 4.59 02/1966, 4.65 03/1966, 4.59 04/1966, 4.62 05/1966, 4.64 06/1966, 4.50 07/1966, 4.80 08/1966, 4.96 09/1966, 5.37 10/1966, 5.35 11/1966, 5.32 12/1966, 4.96 01/1967, 4.72 02/1967, 4.56 03/1967, 4.26 04/1967, 3.84 05/1967, 3.60 06/1967, 3.54 07/1967, 4.21 08/1967, 4.27 09/1967, 4.42 10/1967, 4.56 11/1967, 4.73 12/1967, 4.97 01/1968, 5.00 02/1968, 4.98 03/1968, 5.17 04/1968, 5.38 05/1968, 5.66 06/1968, 5.52 07/1968, 5.31 08/1968, 5.09 09/1968, 5.19 10/1968, 5.35 11/1968, 5.45 12/1968, 5.96 01/1969, 6.14 02/1969, 6.12 03/1969, 6.02 04/1969, 6.11 05/1969, 6.04 06/1969, 6.44 07/1969, 7.00 08/1969, 6.98 09/1969, 7.09 10/1969, 7.00 11/1969, 7.24 12/1969, 7.82 01/1970, 7.87 02/1970, 7.13 03/1970, 6.63 04/1970, 6.51 05/1970, 6.84 06/1970, 6.68 07/1970, 6.45 08/1970, 6.41 09/1970, 6.12 10/1970, 5.91 11/1970, 5.28 12/1970, 4.87 01/1971, 4.44 02/1971, 3.70 03/1971, 3.38 04/1971, 3.86 05/1971, 4.14 06/1971, 4.75 07/1971, 5.40 08/1971, 4.94 09/1971, 4.69 10/1971, 4.46 11/1971, 4.22 12/1971, 4.01 01/1972, 3.38 02/1972, 3.20 03/1972, 3.73 04/1972, 3.71 05/1972, 3.69 06/1972, 3.91 07/1972, 3.98 08/1972, 4.02 09/1972, 4.66 10/1972, 4.74 11/1972, 4.78 12/1972, 5.07 01/1973, 5.41 02/1973, 5.60 03/1973, 6.09 04/1973, 6.26 05/1973, 6.36 06/1973, 7.19 07/1973, 8.01 08/1973, 8.67 09/1973, 8.29 10/1973, 7.22 11/1973, 7.83 12/1973, 7.45 01/1974, 7.77 02/1974, 7.12 03/1974, 7.96 04/1974, 8.33 05/1974, 8.23 06/1974, 7.90 07/1974, 7.55 08/1974, 8.96 09/1974, 8.06 10/1974, 7.46 11/1974, 7.47 12/1974, 7.15 01/1975, 6.26 02/1975, 5.50 03/1975, 5.49 04/1975, 5.61 05/1975, 5.23 06/1975, 5.34 07/1975, 6.13 08/1975, 6.44 09/1975, 6.42 10/1975, 5.96 11/1975, 5.48 12/1975, 5.44 01/1976, 4.87 02/1976, 4.88 03/1976, 5.00 04/1976, 4.86 05/1976, 5.20 06/1976, 5.41 07/1976, 5.23 08/1976, 5.14 09/1976, 5.08 10/1976, 4.92 11/1976, 4.75 12/1976, 4.35 01/1977, 4.62 02/1977, 4.67 03/1977, 4.60 04/1977, 4.54 05/1977, 4.96 06/1977, 5.02 07/1977, 5.19 08/1977, 5.49 09/1977, 5.81 10/1977, 6.16 11/1977, 6.10 12/1977, 6.07 01/1978, 6.44 02/1978, 6.45 03/1978, 6.29 04/1978, 6.29 05/1978, 6.41 06/1978, 6.73 07/1978, 7.01 08/1978, 7.08 09/1978, 7.85 10/1978, 7.99 11/1978, 8.64 12/1978, 9.08 01/1979, 9.35 02/1979, 9.32 03/1979, 9.48 04/1979, 9.46 05/1979, 9.61 06/1979, 9.06 07/1979, 9.24 08/1979, 9.52 09/1979, 10.26 10/1979, 11.70 11/1979, 11.79 12/1979, 12.04 01/1980, 12.00 02/1980, 12.86 03/1980, 15.20 04/1980, 13.20 05/1980, 8.58 06/1980, 7.07 07/1980, 8.06 08/1980, 9.13 09/1980, 10.27 10/1980, 11.62 11/1980, 13.73 12/1980, 15.49 01/1981, 15.02 02/1981, 14.79 03/1981, 13.36 04/1981, 13.69 05/1981, 16.30 06/1981, 14.73 07/1981, 14.95 08/1981, 15.51 09/1981, 14.70 10/1981, 13.54 11/1981, 10.86 12/1981, 10.85 01/1982, 12.92 02/1982, 14.28 03/1982, 13.31 04/1982, 13.34 05/1982, 12.71 06/1982, 13.08 07/1982, 11.86 08/1982, 9.00 09/1982, 8.19 10/1982, 7.97 11/1982, 8.35 12/1982, 8.20 01/1983, 8.12 02/1983, 8.39 03/1983, 8.66 04/1983, 8.51 05/1983, 8.50 06/1983, 9.14 07/1983, 9.45 08/1983, 9.74 09/1983, 9.36 10/1983, 8.99 11/1983, 9.11 12/1983, 9.36 01/1984, 9.26 02/1984, 9.46 03/1984, 9.89 04/1984, 10.07 05/1984, 10.22 06/1984, 10.26 07/1984, 10.53 08/1984, 10.90 09/1984, 10.80 10/1984, 10.12 11/1984, 8.92 12/1984, 8.34 01/1985, 8.02 02/1985, 8.56 03/1985, 8.83 04/1985, 8.22 05/1985, 7.73 06/1985, 7.18 07/1985, 7.32 08/1985, 7.37 09/1985, 7.33 10/1985, 7.40 11/1985, 7.48 12/1985, 7.33 01/1986, 7.30 02/1986, 7.29 03/1986, 6.76 04/1986, 6.24 05/1986, 6.33 06/1986, 6.40 07/1986, 6.00 08/1986, 5.69 09/1986, 5.35 10/1986, 5.32 11/1986, 5.50 12/1986, 5.68 01/1987, 5.58 02/1987, 5.75 03/1987, 5.77 04/1987, 5.82 05/1987, 5.85 06/1987, 5.85 07/1987, 5.88 08/1987, 6.23 09/1987, 6.62 10/1987, 6.35 11/1987, 5.89 12/1987, 5.96 01/1988, 6.00 02/1988, 5.84 03/1988, 5.87 04/1988, 6.08 05/1988, 6.45 06/1988, 6.66 07/1988, 6.95 08/1988, 7.30 09/1988, 7.48 10/1988, 7.60 11/1988, 8.03 12/1988, 8.35 01/1989, 8.56 02/1989, 8.84 03/1989, 9.14 04/1989, 8.96 05/1989, 8.74 06/1989, 8.43 07/1989, 8.15 08/1989, 8.17 09/1989, 8.01 10/1989, 7.90 11/1989, 7.94 12/1989, 7.88 01/1990, 7.90 02/1990, 8.00 03/1990, 8.17 04/1990, 8.04 05/1990, 8.01 06/1990, 7.99 07/1990, 7.87 08/1990, 7.69 09/1990, 7.60 10/1990, 7.40 11/1990, 7.29 12/1990, 6.95 01/1991, 6.41 02/1991, 6.12 03/1991, 6.09 04/1991, 5.83 05/1991, 5.63 06/1991, 5.75 07/1991, 5.75 08/1991, 5.50 09/1991, 5.37 10/1991, 5.14 11/1991, 4.69 12/1991, 4.18 01/1992, 3.91 02/1992, 3.95 03/1992, 4.14 04/1992, 3.84 05/1992, 3.72 06/1992, 3.75 07/1992, 3.28 08/1992, 3.20 09/1992, 2.97 10/1992, 2.93 11/1992, 3.21 12/1992, 3.29 01/1993, 3.07 02/1993, 2.99 03/1993, 3.01 04/1993, 2.93 05/1993, 3.03 06/1993, 3.14 07/1993, 3.11 08/1993, 3.09 09/1993, 3.01 10/1993, 3.09 11/1993, 3.18 12/1993, 3.13 01/1994, 3.04 02/1994, 3.33 03/1994, 3.59 04/1994, 3.78 05/1994, 4.27 06/1994, 4.25 07/1994, 4.46 08/1994, 4.61 09/1994, 4.75 10/1994, 5.10 11/1994, 5.45 12/1994, 5.76 01/1995, 5.90 02/1995, 5.94 03/1995, 5.91 04/1995, 5.84 05/1995, 5.85 06/1995, 5.64 07/1995, 5.59 08/1995, 5.57 09/1995, 5.43 10/1995, 5.44 11/1995, 5.52 12/1995, 5.29 01/1996, 5.15 02/1996, 4.96 03/1996, 5.10 04/1996, 5.09 05/1996, 5.15 06/1996, 5.23 07/1996, 5.30 08/1996, 5.19 09/1996, 5.24 10/1996, 5.12 11/1996, 5.17 12/1996, 5.04 01/1997, 5.17 02/1997, 5.14 03/1997, 5.28 04/1997, 5.30 05/1997, 5.20 06/1997, 5.07 07/1997, 5.19 08/1997, 5.28 09/1997, 5.08 10/1997, 5.11 11/1997, 5.28 12/1997, 5.30 01/1998, 5.18 02/1998, 5.23 03/1998, 5.16 04/1998, 5.08 05/1998, 5.14 06/1998, 5.12 07/1998, 5.09 08/1998, 5.04 09/1998, 4.74 10/1998, 4.07 11/1998, 4.53 12/1998, 4.50 01/1999, 4.45 02/1999, 4.56 03/1999, 4.57 04/1999, 4.41 05/1999, 4.63 06/1999, 4.72 07/1999, 4.69 08/1999, 4.87 09/1999, 4.82 10/1999, 5.02 11/1999, 5.23 12/1999, 5.36 01/2000, 5.50 02/2000, 5.73 03/2000, 5.86 04/2000, 5.82 05/2000, 5.99 06/2000, 5.86 07/2000, 6.14 08/2000, 6.28 09/2000, 6.18 10/2000, 6.29 11/2000, 6.36 12/2000, 5.94 01/2001, 5.29 02/2001, 5.01 03/2001, 4.54 04/2001, 3.97 05/2001, 3.70 06/2001, 3.57 07/2001, 3.59 08/2001, 3.44 09/2001, 2.69 10/2001, 2.20 11/2001, 1.91 12/2001, 1.72 01/2002, 1.68 02/2002, 1.76 03/2002, 1.83 04/2002, 1.75 05/2002, 1.76 06/2002, 1.73 07/2002, 1.71 08/2002, 1.65 09/2002, 1.66 10/2002, 1.61 11/2002, 1.25 12/2002, 1.21 01/2003, 1.19 02/2003, 1.19 03/2003, 1.15 04/2003, 1.15 05/2003, 1.09 06/2003, 0.94 07/2003, 0.92 08/2003, 0.97 09/2003, 0.96 10/2003, 0.94 11/2003, 0.95 12/2003, 0.91 01/2004, 0.90 02/2004, 0.94 03/2004, 0.95 04/2004, 0.96 05/2004, 1.04 06/2004, 1.29 07/2004, 1.36 08/2004, 1.50 09/2004, 1.68 10/2004, 1.79 11/2004, 2.11 12/2004, 2.22 01/2005, 2.37 02/2005, 2.58 03/2005, 2.80 04/2005, 2.84 05/2005, 2.90 06/2005, 3.04 07/2005, 3.29 08/2005, 3.52 09/2005, 3.49 10/2005, 3.79 11/2005, 3.97 12/2005, 3.97 01/2006, 4.34 02/2006, 4.54 03/2006, 4.63 04/2006, 4.72 05/2006, 4.84 06/2006, 4.92 07/2006, 5.08 08/2006, 5.09 09/2006, 4.93 10/2006, 5.05 11/2006, 5.07 12/2006, 4.97 01/2007, 5.11 02/2007, 5.16 03/2007, 5.08 04/2007, 5.01 05/2007, 4.87 06/2007, 4.74 07/2007, 4.96 08/2007, 4.32 09/2007, 3.99 10/2007, 4.00 11/2007, 3.35 12/2007, 3.07 01/2008, 2.82 02/2008, 2.17 03/2008, 1.28 04/2008, 1.31 05/2008, 1.76 06/2008, 1.89 07/2008, 1.66 08/2008, 1.75 09/2008, 1.15 10/2008, 0.69 11/2008, 0.19 12/2008, 0.03 01/2009, 0.13 02/2009, 0.30 03/2009, 0.22 04/2009, 0.16 05/2009, 0.18 06/2009, 0.18 07/2009, 0.18 08/2009, 0.17 09/2009, 0.12 10/2009, 0.07 11/2009, 0.05 12/2009, 0.05 01/2010, 0.06 02/2010, 0.11 03/2010, 0.15 04/2010, 0.16 05/2010, 0.16 06/2010, 0.12 07/2010, 0.16 08/2010, 0.16 09/2010, 0.15 10/2010, 0.13 11/2010, 0.14 12/2010, 0.14 01/2011, 0.15 02/2011, 0.13