Year	DOD, current US$
1970	171024000
1971	202427000
1972	239548000
1973	314258000
1974	402910000
1975	647965000
1976	914831000
1977	1225338000
1978	1526215000
1979	1993325000
1980	3039170000
1981	3374488539.3
1982	3728107023.2
1983	4268866716.4
1984	4225740563
1985	5623733884.8
1986	7279641534.4
1987	9136850744.9
1988	8759396686.6
1989	8975595229.9
1990	10022309386.1
1991	10528713515.5
1992	10724774000
1993	11147381000
1994	11930594000
1995	12750855000
1996	12252500000
1997	11135947000
1998	11373143000
1999	11062896000
2000	10348632000
2001	9971063000
2002	10417351000
2003	11022585000
2004	10906715000
2005	10151687000
2006	9811038000
2007	11294570000
2008	10972850000
2009	11891138000
2010	12319510000
2011	13081216000
2012	13888344000
2013	15171408000
2014	15201947000
2015	18093304000
2016	21638191000
2017	25058180000
2018	27159708000
2019	30045174000
2020	33462128000
2021	33883400000
2022	34997169000