Year	DOD, current US$
1970	2246000
1971	2210000
1972	2312000
1973	2760000
1974	3310000
1975	10188000
1976	14613000
1977	27110000
1978	32088000
1979	40617000
1980	56579000
1981	76446000
1982	78578000
1983	86300000
1984	75826000
1985	89316000
1986	110440000
1987	126191000
1988	105617000
1989	94094000
1990	87973000
1991	75534000
1992	61976000
1993	51950000
1994	44124000
1995	34529000
1996	22787000
1997	14239000
1998	8614000
1999	4102000
2000	1253000
2001	0