Year	DOD, current US$
1970	1576000
1971	4863000
1972	6996000
1973	10501000
1974	10626000
1975	23648000
1976	25830000
1977	25712000
1978	26310000
1979	28640000
1980	29759000
1981	30725000
1982	30549000
1983	29504000
1984	25422000
1985	27784000
1986	31192000
1987	35472000
1988	30377000
1989	27272000
1990	26446000
1991	23303000
1992	19502000
1993	16748000
1994	14438000
1995	11540000
1996	6563000
1997	2506000
1998	1129000
1999	0
2000	0