Year	constant 2010 US$
1990	284899101481.439
1991	284311279261.278
1992	283330031856.011
1993	275717790777.049
1994	294608331085.16
1995	309321583283.884
1996	307094696003.108
1997	309642623772.084
1998	313555370943.249
1999	313827805053.904
2000	325115080040.036
2001	323088975506.831
2002	322539604242.369
2003	316335470319.409
2004	322140687596.14
2005	323611858282.167
2006	338463291922.572
2007	348678842638.689
2008	337358192156.259
2009	277809287310.915
2010	302338290453.299
2011	308432099819.052
2012	297777502395.681
2013	293078311982.383
2014	294729604394.462
2015	302859716361.733
2016	310671436689.716
2017	321985200164.974
2018	328601892306.063