Year	current US$
1992	459549049.79999995
1993	1703604928
1994	3284700000
1995	3806900000
1996	4246720599.9999995
1997	4302500000
1998	4373588201
1999	3686500000
2000	5055395702
2001	6492345217
2002	6594939719
2003	8399719483.999999
2004	12804189926
2005	17384956291
2006	23708800785
2007	32804133611.999996
2008	37926790838
2009	28391199064
2010	23660457705
2011	38072975619
2012	44537884064
2013	49073576293
2014	41467390461
2015	30600567148
2016	25376739948
2017	29139332277
2018	32270603138
2019	38419023133
2020	40023231686