Year	PPG (DOD, current US$)
1970	241594000
1971	268840000
1972	318541325
1973	358758715.8
1974	402066126.1
1975	467672433.4
1976	567902030.7
1977	674749224.7
1978	804982128.4
1979	943894848.3
1980	1299082218.6
1981	1478441612.9
1982	1744221650.4
1983	2277735888.6
1984	2436300029.4
1985	2762006933.3
1986	3004456145.1
1987	3309428213.9
1988	3363982403.9
1989	3429844724.2
1990	3531890899.7
1991	3865336994.2
1992	3840188068.8
1993	3889139626.4
1994	3710774822.4
1995	3738039284.7
1996	3607285590.1
1997	3531288627.1
1998	3552745882.6
1999	3649735993.8
2000	3381317999.2
2001	3866675465.5
2002	4370725844.9
2003	6068332039.8
2004	6650504553.6
2005	6417573059.9
2006	6904003701.7
2007	6825216064.8
2008	7285303130.5
2009	8162234144.9
2010	9440605901.9
2011	10761625596.7
2012	11983223607.5
2013	14174662646.8
2014	15700688750.4
2015	15814839514.3
2016	17185623100.5
2017	18513928696.2
2018	21375007211.7
2019	23006434523.9
2020	29856238518.6
2021	32506506083.1
2022	35559360465.5