Year	DOD, current US$
1972	30147075.5
1973	51609673.1
1974	80620516
1975	108431977.6
1976	248637856.5
1977	427840145.7
1978	627010902.8
1979	3258245132.5
1980	7130979288
1981	8071028441.8
1982	7796961300.5
1983	7585372547.6
1984	6254768201.8
1985	5805117637.3
1986	5652547694.3
1987	5342740010.1
1988	2116467905
1989	198835957.5
1990	229859077.2
1991	362041921.2
1992	1478600005.2
1993	2358365545.6
1994	3312551588.9
1995	4491029349.1
1996	6666662701.9
1997	8077495473.8
1998	8992705786.2
1999	8163587166.4
2000	9944745819.5
2001	11266497045.1
2002	14946761791.8
2003	19524836352.7
2004	24750968939.7
2005	31102058931.2
2006	37196298330.4
2007	54935214417.9
2008	73761376366.3
2009	86544735845.7
2010	81626861449
2011	82364689365.5
2012	88754990657.3
2013	98869716680.7
2014	96190161354.6
2015	82516063845.4
2016	82459112965.2
2017	97657553299.7
2018	94906893531.4
2019	100544289576.7
2020	123204415369.6