Year	DOD, current US$
1970	0
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	5173449.9
1978	15243945.8
1979	13650173.5
1980	16190643.7
1981	25261486.4
1982	40045272.4
1983	35076874.8
1984	32943013.2
1985	32975492.4
1986	29528150.4
1987	37801614.3
1988	34573724.4
1989	37670396.4
1990	44929025.5
1991	40205097.6
1992	35593250
1993	33207185.4
1994	31299183
1995	25769790.8
1996	17551740.1
1997	10221917.7
1998	10429278.5
1999	18371045.9
2000	24813920.9
2001	32336919.6
2002	38910821.9
2003	42529947.4
2004	32712602.6
2005	28142326.3
2006	25487544.8
2007	14413460.3
2008	20209882.7
2009	75230387.7
2010	76975398.1
2011	80319263.7
2012	94437658
2013	95481567
2014	86768933
2015	88438711.2
2016	80048234.6
2017	93943014.7
2018	84051097.7
2019	77241871.4
2020	103378149.7
2021	227659333.3
2022	247789801.2