Year	DOD, current US$
1990	0
1991	0
1992	0
1993	449000
1994	1512000
1995	2111000
1996	3894000
1997	3723000
1998	5356000
1999	6173000
2000	5963000
2001	5190000
2002	5949000
2003	10143000
2004	10510000
2005	10262000
2006	9991000
2007	17848000
2008	18178000
2009	19236000
2010	20841000
2011	18024000
2012	15465000
2013	13384000
2014	11438000
2015	9410000
2016	7293000
2017	5647000
2018	4401000
2019	3492000
2020	3120000
2021	2960000
2022	2800000