Year	PPG (DOD, current US$)
1970	167205203.5
1971	202951659.7
1972	248425832.2
1973	301145368.3
1974	363784803.3
1975	495900803
1976	632520616.7
1977	830800622.6
1978	1052271965.1
1979	1424181888.3
1980	1819191188.2
1981	2331602527.2
1982	2514108996.4
1983	3261186880.8
1984	3299626970.5
1985	3645379641.9
1986	3735873468.7
1987	3813657285.7
1988	3642763048.5
1989	3635257763.8
1990	3145594865
1991	3366689938.6
1992	3243964186.8
1993	3191319979.4
1994	3269668922.9
1995	3176200114.3
1996	2949124760.9
1997	2787490055.8
1998	3039871958.5
1999	3194794237.3
2000	3512750652.1
2001	3519757576.7
2002	3381618031
2003	3847645620.5
2004	3512063554.1
2005	3159253414
2006	3309542783.3
2007	3646179472.2
2008	3224025244.4
2009	3208135710.6
2010	3821996704.6
2011	3968455371.6
2012	4977355124
2013	7466508575.2
2014	8819402004.5
2015	10146715170.4
2016	11053717983.2
2017	11037437508.6
2018	11940621199.8
2019	13391791626.4
2020	12576716219
2021	12706145234.1
2022	14060739227.7