Year	PPG (DOD, current US$)
2006	828618658.1
2007	843838165.2
2008	851235079.2
2009	1094339673.6
2010	1348824753.4
2011	1801885339.4
2012	2180726889.6
2013	2424263293.1
2014	2360985926.8
2015	2555915386.1
2016	2428186325.9
2017	2978416053.1
2018	3425124240.4
2019	3708635215.6
2020	4842494479.2
2021	4305202634.9
2022	3965074611.4