Year	PPG (DOD, current US$)
1970	151654789.3
1971	161489392.7
1972	166691069.2
1973	163281201.4
1974	183403327.1
1975	179799272.9
1976	203474247.1
1977	257285821
1978	380215002.2
1979	509886582.9
1980	538280580.1
1981	463977366.8
1982	541614048.3
1983	604004664.5
1984	698106973.6
1985	893049965.4
1986	1111898777.3
1987	1601092094.7
1988	1606751000.1
1989	1861493665.7
1990	2177461373.5
1991	2299826400.5
1992	2448612469.6
1993	2614499753.3
1994	2885717198
1995	3089137116
1996	3177347145.3
1997	3391080208.7
1998	3401017242.6
1999	2994177472.7
2000	3051302316.5
2001	3304841244.1
2002	3564532076.7
2003	4150224637.9
2004	4417544312.8
2005	4208684834.6
2006	1099379621.1
2007	1570675716.4
2008	1780109736
2009	2247244064.6
2010	2672930594.2
2011	2963297088
2012	3478397236.1
2013	4064480909
2014	4212824558.2
2015	4869311974.6
2016	5445714582.5
2017	6889552105.4
2018	7700546042.8
2019	8637863854
2020	11335397084.6
2021	11973707473.7
2022	13108560255.6