Year	current US$
1992	3402505000
1993	2474038000
1994	2978314000
1995	5504787000
1996	6939291000
1997	8639422000
1998	8530293000
1999	6673743300
2000	8641390613
2001	8291485506.000001
2002	9091555013
2003	11556676003
2004	16486892798
2005	16699253875.999998
2006	22330194114
2007	28693112491
2008	39381249306
2009	28563571317
2010	34884450400
2011	45759051200
2012	46404382200
2013	43022550300
2014	40502267600
2015	30264298700
2016	27609883700
2017	34234849199.999996
2018	38441071300
2019	39476679200
2020	32618761700