Year	current US$
1990	1498550612.08103
1991	6757104.51201856
1992	6434722.68265401
1993	9333665.70445749
1994	35189022.2146077
1995	98719137.7371037
1996	79267643.8082305
1997	138788018.395261
1998	110110151.967457
1999	165943001.51118
2000	177750182.876029
2001	133198642.796518
2002	135194736.525218
2003	135147404.209864
2004	167061641.367715
2005	243904984.51689
2006	318468890.196844
2007	464385722.802805
2008	737922330.421109
2009	676572526.335906
2010	867606554.121729
2011	1160157506.47224
2012	1276196255.69408
2013	1342611285.67145
2014	1305058423.70954
2015	949976497.939998
2016	874118248.41712
2017	1012762219.51772
2018	1240759406.60776
2019	1231107051.5013
2020	1099856384.23341
2021	1190957094.01147