,Instrument,"U.S. government securities/Treasury bills (secondary market)"
  ,Maturity,"6-month"
  ,Frequency,"Annual"
  ,Description,"6-month Treasury bill secondary market rate discount basis"
  ,Note,"Annualized using a 360-day year or bank interest."
  ,Note,"On a discount basis."


DATE      , TBM6
1958, 3.01
1959, 3.81
1960, 3.20
1961, 2.59
1962, 2.90
1963, 3.26
1964, 3.68
1965, 4.05
1966, 5.06
1967, 4.61
1968, 5.47
1969, 6.86
1970, 6.51
1971, 4.52
1972, 4.47
1973, 7.20
1974, 7.95
1975, 6.10
1976, 5.26
1977, 5.52
1978, 7.58
1979, 10.04
1980, 11.32
1981, 13.81
1982, 11.06
1983, 8.74
1984, 9.78
1985, 7.65
1986, 6.02
1987, 6.03
1988, 6.91
1989, 8.03
1990, 7.46
1991, 5.44
1992, 3.54
1993, 3.12
1994, 4.64
1995, 5.56
1996, 5.08
1997, 5.18
1998, 4.83
1999, 4.75
2000, 5.90
2001, 3.34
2002, 1.68
2003, 1.05
2004, 1.58
2005, 3.39
2006, 4.81
2007, 4.44
2008, 1.62