Year	DOD, current US$
1999	20804700.8
2000	19749694.8
2001	19049691.8
2002	20607797.2
2003	22524544.3
2004	23540746.1
2005	21665077.6
2006	22803908.8
2007	23953653.9
2008	23347631.4
2009	23763267.6
2010	23343993.4
2011	23271840.7
2012	23296849.9
2013	23343526.1
2014	21960986.6
2015	21004904.1
2016	20377380.8
2017	21587026.7
2018	21081618.6
2019	20960870.2
2020	21831589.4
2021	42544853.5
2022	40454988.9