Year	PPG (DOD, current US$)
1970	320999124.6
1971	344594895.5
1972	390449438.1
1973	516512118.3
1974	595846039
1975	630668292.3
1976	763624398.1
1977	1021267561.9
1978	1243386532.1
1979	1666360800.8
1980	2055524898.6
1981	2133815203
1982	2249976059.5
1983	2258435038.1
1984	2287369367.8
1985	2670555671.6
1986	3309769966.4
1987	4197678002.9
1988	4172166824.7
1989	4193823254.4
1990	4758759228.7
1991	5265651563.4
1992	5149098757.2
1993	5245781902.2
1994	5512564034.8
1995	5856907963.3
1996	5573786122.7
1997	5093209965.1
1998	5512444777.8
1999	5343426138.9
2000	5040546163.2
2001	4711201425.9
2002	5250540367.9
2003	5832311074
2004	6084346381
2005	5799177838.1
2006	5920848847.8
2007	6282124708.8
2008	6432616496.4
2009	6767532210.8
2010	7027126295.2
2011	7650035167.6
2012	8962499572.4
2013	9769963161.5
2014	13300240298.4
2015	15145903392.5
2016	17146616388.7
2017	22399311650.9
2018	26988033642
2019	30814097680.3
2020	33533405381.5
2021	35227863584.3
2022	35037185971.9