Year	DOD, current US$
1971	0
1972	0
1973	0
1974	0
1975	0
1976	0
1977	649869.8
1978	354358.9
1979	4725262.7
1980	6207420.5
1981	5687108.6
1982	5389795.5
1983	4967777.8
1984	4244309.3
1985	3853257.4
1986	3103258.4
1987	2220202.9
1988	5049066.4
1989	10146629.4
1990	15064546.7
1991	18359569.8
1992	24915000
1993	34222246.2
1994	40340033.8
1995	38382658.6
1996	33764739.4
1997	27504460.4
1998	23599991.4
1999	22230543.9
2000	15988008.6
2001	19948075.3
2002	27093874.1
2003	32122213.5
2004	43855449.4
2005	40361155.5
2006	41956211.6
2007	41306154.7
2008	35409267
2009	75685229.4
2010	78815941.8
2011	80307188.7
2012	115150934.8
2013	130181036.1
2014	120950589.9
2015	114604075.9
2016	108319531.5
2017	108050488.4
2018	93814454.5
2019	79280156.3
2020	119386733.7
2021	197664637.8
2022	181503134.8