Year	DOD, current US$
1970	18372000
1971	19922000
1972	22975000
1973	25552000
1974	25453000
1975	26292000
1976	28736000
1977	33758000
1978	38887000
1979	42226000
1980	44866000
1981	47097000
1982	47164000
1983	47105000
1984	46565000
1985	45896000
1986	45025000
1987	44100000
1988	43207000
1989	42244000
1990	41232000
1991	40219000
1992	39208000
1993	38093000
1994	36979000
1995	35607000
1996	34194000
1997	32699000
1998	31206000
1999	29715000
2000	28221000
2001	26727000
2002	25295000
2003	23742000
2004	22249000
2005	20755000
2006	19263000
2007	17770000
2008	16276000
2009	14784000
2010	13291000
2011	11798000
2012	10521000
2013	9311000
2014	8166000
2015	7020000
2016	6146000
2017	5272000
2018	4398000
2019	3600000
2020	2879000
2021	2158000
2022	1437000