Year	DOD, current US$
1981	0
1982	882488
1983	70852381.9
1984	254005377.1
1985	929645407.6
1986	1739146427.2
1987	2757193814.6
1988	3650661125.1
1989	4625212305
1990	5880987314.6
1991	7165273756.2
1992	8149331000
1993	9874420000
1994	12241028000
1995	14472925000
1996	15414674000
1997	16276727000
1998	18545271000
1999	19515396000
2000	20097046000
2001	20410918000
2002	20884540000
2003	21178851000
2004	21918012000
2005	21071965000
2006	21606874000
2007	22109858000
2008	22439564000
2009	22460926000
2010	22135458000
2011	20667636000
2012	19824243000
2013	18958546000
2014	17884480000
2015	17047891000
2016	16214801000
2017	16356049000
2018	16094925000
2019	16270521000
2020	16235962000
2021	16584800000
2022	16067277000