Year	PPG (DOD, current US$)
1993	35500000
1994	103199844.4
1995	206082378.9
1996	247857892
1997	237273458.7
1998	311556680.6
1999	533515661
2000	794476706.4
2001	833553847.1
2002	1059140199.4
2003	1292389619.1
2004	1377470124
2005	1513688456.3
2006	1831279633.5
2007	2303731505.7
2008	2743980841.2
2009	3368352303.1
2010	3846129974.9
2011	4750011945.4
2012	6221343605.2
2013	6607063303.1
2014	8423794943.3
2015	8730672793
2016	10643296952.4
2017	12608687189
2018	14328469456.6
2019	14674990998.1
2020	14666682701.3
2021	13623473423.8
2022	12910970946.6