Year	PPG (DOD, current US$)
1970	20692657380.099995
1971	24316865136.100002
1972	26667106468.5
1973	31788496658.600002
1974	36348235821.799995
1975	44466483058.50001
1976	52180030757.40001
1977	66863751027.90001
1978	84592165304.2
1979	98724870659.3
1980	119466387333.19998
1981	129214202454.00002
1982	144066584487.3
1983	157085999542.59998
1984	162819286212.90005
1985	189939492326.79996
1986	229042194191.70004
1987	276913759302.4
1988	289465692877.1001
1989	333924590153.8001
1990	358712013095.9
1991	368875350046.00006
1992	369697350628.6999
1993	390849251259.1
1994	427459076777.89996
1995	436783503127.6
1996	421223045623.89996
1997	401868506578.8001
1998	427126997064.8
1999	429766134329.9
2000	408289192579.80005
2001	395152223359.7999
2002	422388931744.2001
2003	435250545910.2999
2004	450337257638.39996
2005	407922260675.5
2006	376156977081.5
2007	409005539927.39984
2008	427268671707.5001
2009	462310194635.8
2010	498964760222.79987
2011	528606189396.2
2012	568623947588.1001
2013	614363338288.9999
2014	676008729487.3002
2015	721423765199.7999
2016	752329529758.1
2017	873434084460.0002
2018	937425791887.4004
2019	1012864976347.2
2020	1108788408616.9
2021	1167655089834.4
2022	1194402422251.0996