Year	PPG (DOD, current US$)
1970	17358400
1971	33201565.7
1972	74756512
1973	114920842.5
1974	134055048
1975	147979450.1
1976	166353134.3
1977	182561932.5
1978	122537379.1
1979	112896348
1980	131629101.5
1981	151540360.1
1982	201807763.8
1983	224122753.2
1984	261914783.7
1985	343662733.4
1986	403923150.5
1987	539146978.9
1988	528845347.5
1989	546281480.1
1990	547143979.7
1991	605924888.2
1992	600044444.3
1993	656225023.7
1994	689168910.1
1995	706959662.4
1996	620518347.7
1997	534727348
1998	524739048.7
1999	484498471.4
2000	437755242.7
2001	378874794.3
2002	472423923.3
2003	484649106.1
2004	488026722.2
2005	412308772.5
2006	358173807.6
2007	396301237
2008	396793202.7
2009	1395265160.6
2010	1358491275.9
2011	1900015194.7
2012	1942415500.7
2013	1822894112.1
2014	1917185781.9
2015	1772453335.7
2016	1670366310.2
2017	1551795909.3
2018	1451298407.2
2019	1334338113.7
2020	1278429299.9
2021	1466452278
2022	1524166156.7