Year	PPG (DOD, current US$)
1970	3893918567.4000006
1971	4668847905.299999
1972	5097473777.400001
1973	6854471422.399999
1974	7797902305.100001
1975	12491783657.499998
1976	15743227870.200003
1977	23822537773.8
1978	32785059025.399998
1979	39289186197.49999
1980	50718286800.3
1981	53853714535.9
1982	58094055811.50001
1983	61354326555.90001
1984	63122693834.399994
1985	72248005787.5
1986	82662616677.3
1987	96244802909.2
1988	100522786276.8
1989	101770279536.60002
1990	99152150726.59999
1991	98845208335.09999
1992	97103045183.59999
1993	100356887759.9
1994	117154152681.29999
1995	123472393457.90001
1996	118370680682.9
1997	105899859491.20001
1998	110490669410.8
1999	103023105555.9
2000	96168317501.9
2001	96614185520
2002	106226059996.1
2003	114679933198.40001
2004	119719540444.20001
2005	110924250576.4
2006	103801714429.29999
2007	111517858726.40002
2008	111192038914.90001
2009	113496993739.2
2010	114349503311.19998
2011	112801650546.8
2012	121744188775.30002
2013	138999868517.30002
2014	134863688518.8
2015	161084603520
2016	175577146805.3
2017	204086798920.4
2018	221337168721.09998
2019	237106536486.7
2020	258488534851.20007
2021	261378891270
2022	256454082802.6