Year	PPG (DOD, current US$)
1970	3641921857.4
1971	4780368592.099999
1972	5851545364.6
1973	7158242136.3
1974	8669829599.699999
1975	10789771500.3
1976	13871851469.7
1977	16979772004.400002
1978	20766372072.100002
1979	23278858088.500004
1980	27969549619.4
1981	36641984037.4
1982	42239981295.1
1983	48527048648.30001
1984	51392555853.39999
1985	65616797493.200005
1986	86501097363.2
1987	111739870870.99998
1988	118000217672.20001
1989	143541563628.59998
1990	160599060006.09998
1991	172023747916.90002
1992	184238794101.5
1993	203065771874.9
1994	227073778504.8
1995	239893770725.10004
1996	240576882899.9
1997	248768594215.49997
1998	256942068894.8
1999	269413105814.2
2000	252850629386.20004
2001	239628623704.80005
2002	240286675611.09998
2003	240945957639.5
2004	243302473487.69995
2005	243465187048.60004
2006	245169474839.8
2007	253428759332.70004
2008	273366495395.50003
2009	296719861605.39996
2010	318811039212.7
2011	348332958718.6
2012	403365351488.8002
2013	416912585527.9
2014	459915122319.80005
2015	445489249812.5
2016	479604768094.0999
2017	551958443555
2018	647569953860.8003
2019	733754213027.7001
2020	838601987030.1
2021	910858855823.1
2022	884225815343.2002