Year	DOD, current US$
1970	293528000
1971	318336000
1972	354807000
1973	398972000
1974	451453000
1975	624469000
1976	894251000
1977	1225317000
1978	1619682000
1979	2105003000
1980	2725054000
1981	3670291000
1982	4630749000
1983	5968535000
1984	6045563500
1985	8848592600
1986	11991638800
1987	16206035320
1988	16092319940
1989	16873321140
1990	19073940952.4
1991	20922980439.7
1992	20785399064.3
1993	22664865089.8
1994	24899128140.6
1995	26853268576.7
1996	25330648379.2
1997	24436168534
1998	27056077778.4
1999	28856745000
2000	29663916000
2001	29521788000
2002	27937398000
2003	26259267000
2004	24047718000
2005	22798132000
2006	22113330000
2007	21557667000
2008	22190006000
2009	23344244000
2010	25493910000
2011	27004722000
2012	27972904000
2013	30021932000
2014	31220878000
2015	34533295000
2016	36254965000
2017	38583816000
2018	40649688000
2019	42809960000
2020	45524421000
2021	47919852000
2022	49734962000