Year	PPG (DOD, current US$)
1970	319158442.4
1971	396488467.8
1972	424363257.3
1973	487196856.5
1974	590243085.5
1975	599854849.6
1976	703581097.3
1977	788830267.8
1978	976186097.5
1979	1023588662.5
1980	1234979550.4
1981	1518738569.1
1982	1871325568.6
1983	2121310705.1
1984	2354457237.5
1985	2843262124.3
1986	3459288316.2
1987	4087623484.9
1988	4156102419.1
1989	4287172379.2
1990	4951006968.2
1991	5671829056.9
1992	5662390678.9
1993	6030397849.8
1994	6722552908.3
1995	7175325335.3
1996	7120746962.7
1997	7066083723.1
1998	8074185701.5
1999	8445457055.7
2000	7944556777.5
2001	7527386635.3
2002	8443996799
2003	9201059007.8
2004	9869538944.5
2005	9657517198.8
2006	10318074777.2
2007	11821805969.3
2008	12584314271.1
2009	13642665980.7
2010	16429773255.2
2011	18681699405.2
2012	22954102769.6
2013	25427813567.3
2014	25824603879.2
2015	27453029834.6
2016	30114410503
2017	32624255176.7
2018	34354853920.6
2019	36986067568.7
2020	37568043173.3
2021	38481681714.9
2022	38480721684.1