Year	DOD, current US$
1970	2851000
1971	8516000
1972	15441000
1973	23298000
1974	29572000
1975	30807000
1976	35174000
1977	38332000
1978	38374000
1979	38432000
1980	39158000
1981	39905000
1982	40811000
1983	41826000
1984	42999000
1985	42714000
1986	42069000
1987	41334000
1988	40642000
1989	39953000
1990	39099000
1991	38160000
1992	37042000
1993	35813000
1994	34589000
1995	33299000
1996	31945000
1997	30589000
1998	29235000
1999	27881000
2000	26524000
2001	25170000
2002	23816000
2003	22460000
2004	21106000
2005	19752000
2006	18396000
2007	17041000
2008	15708000
2009	14332000
2010	12977000
2011	11621000
2012	10267000
2013	8912000
2014	7564000
2015	6202000
2016	5211000
2017	4206000
2018	3210000
2019	2213000
2020	1464000
2021	837000
2022	491000