Year	current US$
1992	224030
1993	354000
1994	2088000
1995	1238000
1996	2168000
1997	4600000
1998	7700000
1999	7600000
2000	131509462.697231
2001	142426404.45215
2002	3778528.24966252
2003	4524124.96137934
2004	8698274.20634922
2005	17345243.7287577
2006	25148128.4060026
2007	41190568.8763954
2008	791452698.982774
2009	571395003.172665
2010	314819934.776333
2011	357550717.803028
2012	337561104.53784
2013	376424514.331245
2014	292327330.703203
2015	273065661.130807
2016	233810559.591579
2017	202640897.901452
2018	238603497.115385
2019	239424902.949132
2020	174638567.175095
2021	397963583.405483
2022	619659916.517859
2023	596782484.677243