Year	DOD, current US$
1972	3039000
1973	91221000
1974	203980000
1975	294774000
1976	416423000
1977	504629000
1978	607722000
1979	770294000
1980	926003000
1981	1084809909.3
1982	1270015733.8
1983	1458754327.6
1984	1677418334.3
1985	2020939338.3
1986	2449605738.4
1987	2985180063.9
1988	3187857577.7
1989	3441076425.8
1990	4094834272.7
1991	4359848631.2
1992	4534259000
1993	4823657000
1994	5378211000
1995	5637768000
1996	5712872000
1997	5701127000
1998	6167831000
1999	6427941000
2000	6431291000
2001	6439008000
2002	7062849000
2003	8061818000
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