Year	DOD, current US$
1977	0
1978	0
1979	0
1980	0
1981	0
1982	0
1983	0
1984	326750
1985	0
1986	56471.3
1987	0
1988	0
1989	534
1990	73405.5
1991	159952.5
1992	650467.1
1993	1550565
1994	2755833.5
1995	3538425.8
1996	4234496.7
1997	4252481.4
1998	6302181.3
1999	6549856.3
2000	44468397.5
2001	46014302.1
2002	35183208.6
2003	11249673.3
2004	47122946
2005	87247944.6
2006	105168047.2
2007	140892932.4
2008	146721027.9
2009	120254634.8
2010	121504449.5
2011	88640005.9
2012	112297201.5
2013	97920091.6
2014	77052055.5
2015	4077193.9
2016	53668079.8
2017	278129873.8
2018	239635891.8
2019	375402691.2
2020	253167704.7
2021	670223914.7
2022	627961226.5