Year	DOD, current US$
1970	64232860.3
1971	68095825.7
1972	61559341.9
1973	56393232.9
1974	49284347.8
1975	45669452.4
1976	39041939.1
1977	39177398
1978	51818036.2
1979	107528704.6
1980	216292638.8
1981	286064003.1
1982	346971305.3
1983	435888723.7
1984	407164195.4
1985	406132309.7
1986	407364766.1
1987	410917779.4
1988	379848561.5
1989	362065049.8
1990	366014620.6
1991	344612861.1
1992	308621251.9
1993	376095610.2
1994	786751455.1
1995	1610250757.3
1996	2366242540.3
1997	3298689592.1
1998	5012893751.1
1999	6285052305.7
2000	7705321294.1
2001	10238663009.2
2002	15108174851
2003	16424748964.8
2004	19210208867.5
2005	19942735707.3
2006	21003665048.2
2007	21556370911.2
2008	40811107722.2
2009	42718396741.4
2010	43856509838.3
2011	45939190398.6
2012	51278849855.6
2013	54645651338.9
2014	56168883855.8
2015	59572141805.8
2016	61394993989
2017	65126566985.4
2018	73834412702.7
2019	68662638008.3
2020	58441932030.2
2021	52923122334.9
2022	50529113047.5