Year	DOD, current US$
1993	968283686.2
1994	1296124124.3
1995	1693743257.4
1996	1958924253.1
1997	2082345263
1998	2386480834.1
1999	2703253741.5
2000	2620196263.4
2001	2798732256.7
2002	3399007710
2003	3779551001.2
2004	4601438650.3
2005	5300175946.7
2006	6562099699.5
2007	12526106963.9
2008	15152844791
2009	22078685409.7
2010	28412146648.8
2011	33932546340.5
2012	33755733316
2013	39573469218.4
2014	40013829087.7
2015	38257921211.1
2016	37515947697.5
2017	39584221158.1
2018	38767563257
2019	40734118642.4
2020	41792363746.1
2021	41653683788.2
2022	39794026169.4