Year	PPG (DOD, current US$)
1970	1455000
1971	739739.9
1972	775370.6
1973	2787896.7
1974	3191053.4
1975	3447069.1
1976	3738360.1
1977	4743825.9
1978	5687595.1
1979	7234320.1
1980	10327041.1
1981	17016945.8
1982	19623599.3
1983	22612419.7
1984	22775931.2
1985	24791525.4
1986	28359091.2
1987	38461042.6
1988	45197889.8
1989	50980311.1
1990	60590524.3
1991	66767111.7
1992	74686086.8
1993	77978778.3
1994	91431393.9
1995	91327242.2
1996	93072508.5
1997	92160017.1
1998	107902400.8
1999	161446178.8
2000	163254612.9
2001	162366731.7
2002	172779463.8
2003	195528873.1
2004	224527581.4
2005	247838294.1
2006	242460047.8
2007	199822690.8
2008	231461550.9
2009	227268733
2010	277974923.8
2011	281058427.7
2012	265034950.5
2013	288664826.2
2014	313683612.2
2015	318873693.3
2016	306523628.4
2017	313204604.9
2018	305372670.5
2019	335893818.4
2020	383263611.3
2021	472837437.1
2022	528022608.6