Year	PPG (DOD, current US$)
1970	186870748.6
1971	224985089.6
1972	272375840.6
1973	378435445.6
1974	519148139.5
1975	664122383.9
1976	742141106.6
1977	924551129.6
1978	1022390504.5
1979	1165274369.9
1980	1751641713.8
1981	2189997551.2
1982	2596710156.6
1983	3507558039.2
1984	4213771638.8
1985	5027564616.1
1986	5867788153.7
1987	6489745420.8
1988	7054510436.7
1989	7691400443.5
1990	8381199532.8
1991	9250848239.3
1992	9398780554.8
1993	9528863340.2
1994	9900275763.4
1995	8636720671.2
1996	5230018045.2
1997	5292081113.1
1998	5563993061.9
1999	5279296363.8
2000	5435148669.3
2001	5389744882.3
2002	5502699253.2
2003	5805945348.2
2004	4044247207.8
2005	3950765412.7
2006	3248317165.9
2007	2179638324.9
2008	2259376618.2
2009	2526915919.9
2010	2704384419.5
2011	2867052058
2012	3075045671.5
2013	3314825700.8
2014	3584060642.7
2015	3962270017.8
2016	4218363387.9
2017	4709922900.7
2018	5107768264
2019	5427522479.9
2020	5903257655
2021	6407474833.4
2022	6718853818.6