Interstate Substitution Obligations (FY 1974-2002)

Figure 67
INTERSTATE SUBSTITUTION OBLIGATIONS
FY 1974 - 2002
Millions of Dollars

1974 $61, 1975 $66, 1976 $553, 1977 $406, 1978 $563, 1979 $600, 1980 $679, 1981 $615, 1982 $568, 1983 $412, 1984 $210, 1985 $232, 1986 $244, 1987 $197, 1988 $140, 1989 $237, 1990 $159, 1991 $141, 1992 $254, 1993 $77, 1994 $125, 1995 $154, 1996 $116, 1997 $3, 1998 $12, 1999 $3, 2000 $3, 2001 $4, 2002 $0.3