Year	DOD, current US$
1972	3039000
1973	91221000
1974	258876000
1975	349670000
1976	471319000
1977	559525000
1978	662618000
1979	825190000
1980	980899000
1981	1139705909.3
1982	1324911733.8
1983	1513650327.6
1984	1727015334.3
1985	2075750338.3
1986	2510827738.4
1987	3055425063.9
1988	3253663577.7
1989	3503496425.8
1990	4158631272.7
1991	4424364631.2
1992	4594169000
1993	4881219000
1994	5435768000
1995	5692373000
1996	5759327000
1997	5739376000
1998	6203715000
1999	6458722000
2000	6454978000
2001	6456048000
2002	7075581000
2003	8069102000
2004	8894550000
2005	8687879000
2006	9297235000
2007	10077298000
2008	10612974000
2009	10746036000
2010	10653176000
2011	10712228000
2012	11159220000
2013	11582988000
2014	11417309000
2015	11533583000
2016	11890490000
2017	13620791000
2018	14501231000
2019	15788308000
2020	17571890000
2021	17831710000
2022	18225852000