Year	DOD, current US$
1989	6676170079.9
1990	7603459882.7
1991	7702671839.4
1992	8130429817.5
1993	8691068178.9
1994	9122081832.6
1995	9544234897.9
1996	9377299505.7
1997	8681585483.1
1998	9099557192.7
1999	8713044776.2
2000	8084844148
2001	6982714292.1
2002	7540350651.9
2003	7634470053.7
2004	8180879840
2005	9532119023.4
2006	7361981528.7
2007	9240475948.2
2008	12784883279.6
2009	16897661332.2
2010	20925636702.2
2011	27011965146.9
2012	25729517680.4
2013	30530038364.4
2014	37350309188.5
2015	42188952559.2
2016	52634305957.4
2017	54648943562.3
2018	57585644409.3
2019	57847556594.6
2020	57044399213.9
2021	55574967483.5
2022	50330059373.7