Year	DOD, current US$
1993	366857000
1994	684286000
1995	1523877000
1996	2508965000
1997	5053064000
1998	6336702000
1999	6706940000
2000	6843667000
2001	6745633000
2002	6598613000
2003	6289172000
2004	5743457000
2005	5091359000
2006	4758913000
2007	4291763000
2008	3850971000
2009	3210674000
2010	2618311000
2011	2066955000
2012	1609894000
2013	1203869000
2014	876048000
2015	730681000
2016	646060000
2017	550993000
2018	428202000
2019	315239000
2020	235786000
2021	177959000
2022	0