Year	current US$
1990	1489999.977871775
1991	3790000.0084191514
1992	4030000.112950801
1993	5919999.953359368
1994	7609999.882057304
1995	9920000.13962388
1996	12200000.025331968
1997	13060000.110417608
1998	15350000.290200107
1999	12869999.984279267
2000	14139999.985694883
2001	11200000.092387198
2002	12000000
2003	16490000.408142805
2004	21509999.860078055
2005	22779999.401420306
2006	24089999.776333556
2007	27340000.070631523
2008	30400000.289082512
2009	29769999.53202906
2010	37400000.8683652
2011	26599999.718368076
2012	24299999.658018377
2013	22569999.497383803
2014	16930000.09842212
2015	15810000.302270073
2016	11279999.658465339
2017	10449999.85024332
2018	14729999.5422363
2019	17209999.158978462
2020	14940000.38504598
2021	22230000.15318395
2022	15409999.72820283