Year	PPG (DOD, current US$)
1970	110757537.2
1971	117082206.7
1972	134966791.7
1973	145278601.1
1974	234748806.8
1975	274921283.2
1976	349868637
1977	356416218
1978	418600248.5
1979	495189596.7
1980	584471116
1981	793598996.3
1982	1066543072.7
1983	1485292798.9
1984	1576920479.6
1985	1648555361.7
1986	1682186455.8
1987	1766605500.7
1988	1788606027
1989	1916353757.1
1990	1992998224.6
1991	2144560298.6
1992	2228573713.4
1993	1873081268.6
1994	1965091035.4
1995	2036678022.2
1996	2271382297.5
1997	2348187394.6
1998	2379664088.5
1999	2582513703.3
2000	2746022618.6
2001	3249665078.7
2002	4788464945.1
2003	5376026305.7
2004	5566959311.5
2005	5107176437.3
2006	5388629361.6
2007	5454044218.8
2008	5791445789.5
2009	6147030597.2
2010	6838561802.3
2011	7271621415.6
2012	7884971834.6
2013	7867735679.5
2014	8691097364.6
2015	8604025944.4
2016	8710483051.1
2017	9488774611.9
2018	9505477089.4
2019	9856064381.4
2020	10790893474.2
2021	11544053700
2022	11993502685.4