Year	PPG (DOD, current US$)
1970	1846323200.2
1971	2231325317.4
1972	2470069347.9
1973	2888009180
1974	3164121915.4
1975	3210639386.7
1976	3647884289.8
1977	4471164698.7
1978	6489662075.5
1979	11041362760.8
1980	15040434135
1981	15272311774.6
1982	16095927709.2
1983	16070391416.4
1984	16571790063.2
1985	19568372741
1986	24996941354
1987	31684182463.8
1988	33742055799.5
1989	34989899329.7
1990	38870339195.2
1991	39828826639.5
1992	40462716153.6
1993	44063719966
1994	48436753455.6
1995	50317002773.5
1996	49199186165.8
1997	47448206111.2
1998	50008216178.4
1999	50143296287.5
2000	55736411677.6
2001	53691106817.5
2002	59607420051.8
2003	65591141529.2
2004	69783712097.5
2005	64443866403.2
2006	69912402519.3
2007	82701662867
2008	83932457006.9
2009	87201666244.3
2010	93298953135.7
2011	95255587640
2012	100272495728.4
2013	106499862437.9
2014	105788462724.9
2015	103609684720.1
2016	108561095451.3
2017	118787449990.4
2018	123360080620.4
2019	128884701895
2020	138043099771.4
2021	139215253115.9
2022	140057179669.6