Year lending rate minus treasury bill rate, % 1980 1.5 1981 1.5 1982 1.5 1983 1.5 1984 1.5 1985 1.5 1986 1.5 1987 1.5 1988 1.5 1989 1.5 1990 1.5 1991 1.5 1992 1.5 1993 1.5 1999 1.5 2000 1.5 2001 1.5 2002 1.5 2003 1.5 2004 0.5833333333333304