Year	DOD, current US$
1991	0
1992	5607000
1993	15202000
1994	49604000
1995	80576000
1996	115121000
1997	136047000
1998	178689000
1999	213777000
2000	226426000
2001	228393000
2002	264763000
2003	291456000
2004	318373000
2005	319346000
2006	347333000
2007	365087000
2008	368888000
2009	385211000
2010	377702000
2011	383663000
2012	420275000
2013	468408000
2014	477956000
2015	479183000
2016	490247000
2017	560256000
2018	545941000
2019	526778000
2020	517396000
2021	466542000
2022	391663000