Year	current US$
1993	3005676.3673222
1994	8713303.28199883
1995	9062518.9697134
1996	17992224.6880018
1997	21802417.2829401
1998	24058675.4208864
1999	26947867.601679
2000	16732552.4064896
2001	24304800.746403
2002	34089615.1013975
2003	26189754.7623568
2004	63611104.5005395
2005	65787634.3510733
2006	79166536.1684092
2007	3953399.49795159
2008	5286468.44301794
2009	12297855.7676319
2010	32360885.5158964
2011	39162790.8580109
2012	50325791.4720084
2013	27772183.8803882
2014	9103367.60371343
2015	9494425.81338875
2016	20054323.5822039
2017	33435192.6264465
2018	49426302.0860375
2019	60035162.8461264
2020	44143198.9649877
2021	44025033.9297466
2022	39973483.1498703