Year	PPG (DOD, current US$)
1970	3116650995.8
1971	3655204669.7
1972	4133738493.4
1973	4821799743.7
1974	5291438956.2
1975	5562969423.5
1976	6461735784.5
1977	7576058098.6
1978	9915385669.9
1979	14721710869.4
1980	19629804995.1
1981	21250017642.6
1982	22875483233.5
1983	25047980721
1984	27644091498.1
1985	34521853462.9
1986	43041338897.7
1987	53873689016.5
1988	56111526270.8
1989	58383648224.1
1990	61646708870.2
1991	61317021186.2
1992	126604515344
1993	173489309682.5
1994	184638418201.1
1995	184700628355.59998
1996	182980248866.7
1997	187484049673.7
1998	207210217516.5
1999	211487856071.1
2000	188021473441.19998
2001	180121881452.5
2002	182675116434.90002
2003	197255122479.5
2004	210420128521.6
2005	183919848663.1
2006	213649724194.19998
2007	262753769346.50003
2008	268601321865.3
2009	302398097582.89996
2010	340671191970.39996
2011	385072124044.1
2012	421614071383.19995
2013	507869340024.2
2014	474674633587.80005
2015	462258070526.50006
2016	452247453702.39996
2017	507012124463
2018	495087370066.5
2019	512733658746.9
2020	535190308203.3
2021	528642522061.2
2022	506794884951.1001