Year	DOD, current US$
1974	200000
1975	0
1976	0
1980	0
1981	417976.2
1982	985421.6
1983	1109388
1984	738835.8
1985	440000
1986	0
1987	0
1988	9222.8
1989	57868.4
1990	0
1991	6704.5
1992	0
1993	75561.3
1994	0
1995	0
1996	2506
1997	16563.2
1998	0
1999	0
2000	0
2001	4406.5
2002	9438.3
2003	0
2004	0
2005	0
2006	0
2007	0
2008	0
2009	9363.4
2010	0
2011	0
2012	373
2013	20644000
2014	33479000
2015	28880000
2016	26623000
2017	30168000
2018	16273000
2019	24307000
2020	37864000
2021	48673000
2022	71299000