Year	PPG (DOD, current US$)
1994	29056800.1
1995	36689461.6
1996	44286454.5
1997	75455613.8
1998	146136192
1999	252557948.3
2000	297996112.2
2001	394848948.3
2002	489213774.9
2003	605124676.5
2004	703995465.6
2005	722988768.9
2006	781370032.2
2007	855667833.1
2008	956964488.3
2009	1012986669.3
2010	998425572.6
2011	1010014612.5
2012	949645127.1
2013	894370569
2014	828875547.6
2015	782432705.8
2016	750284109
2017	772043390.2
2018	736129760.8
2019	718072736.7
2020	730534216.7
2021	680385138.6
2022	634610040.9