Year	PPG (DOD, current US$)
1970	139905000
1971	154503000
1972	157565000
1973	176352000
1974	187354000
1975	217868000
1976	246475440
1977	309635179.9
1978	400888330.4
1979	529203893.7
1980	652754662.5
1981	911102607.7
1982	1261245085.8
1983	1512387830.4
1984	2079419261.1
1985	2299293340.4
1986	2414355177.2
1987	2431983004.6
1988	2206887481.2
1989	2178196543.6
1990	2299478880
1991	2280827155.3
1992	2176760272.4
1993	2128385898.8
1994	2351530455.6
1995	2381442453.7
1996	2276611049.5
1997	2390907049.5
1998	2480117617.9
1999	2586246842.5
2000	2598419630
2001	2986744402.2
2002	3154595429.2
2003	3460917347.9
2004	3827820022.9
2005	3720330899
2006	3953321051.8
2007	4222076232.8
2008	4384590154.6
2009	4925728547.7
2010	5559198592.1
2011	5354012787.9
2012	6305706744.6
2013	7059125977.6
2014	6999860265.1
2015	7544216426
2016	8147604566.3
2017	8365983490.9
2018	8428248655.7
2019	9843020268.6
2020	11061338934.3
2021	11710232571.5
2022	11701346827.9