Year	DOD, current US$
1970	6320000
1971	6674000
1972	6765000
1973	6481000
1974	9825000
1975	11616000
1976	11220000
1977	10515000
1978	10266000
1979	11886000
1980	13387000
1981	12509000
1982	11551000
1983	10920000
1984	8060000
1985	8971000
1986	9293000
1987	11339000
1988	10050000
1989	9744000
1990	10620000
1991	10340000
1992	3572000
1993	3292000
1994	3156000
1995	2912000
1996	2077000
1997	1645000
1998	944000
1999	299000
2000	0