Year	current US$
1993	1973646200.59204
1994	1016124963.20899
1995	876830280.122343
1996	795668693.330539
1997	1117717459.17566
1998	1227803144.32104
1999	940691065.847857
2000	1361192894.94228
2001	1009482607.96807
2002	1036471486.18561
2003	1657431070.57694
2004	3016529953.66681
2005	4344349832.41762
2006	5886091029.78401
2007	6971314698.16428
2008	10133812849.0856
2009	6362760328.4933
2010	7236201611.03378
2011	11360635354.8229
2012	11023464304.4215
2013	10382907150.8596
2014	10294761082.9123
2015	8097408009.36047
2016	5673050981.62272
2017	7243818184.23732
2018	8533324268.54121
2019	8146345612.39702
2020	6940327698.68862
2021	8855693446.24397