Year	constant 2010 US$
1990	137283830442.064
1991	140301013908.028
1992	141952230969.843
1993	142858597828.422
1994	145276664057.576
1995	151680827140.669
1996	154550380081.075
1997	162307483718.979
1998	170257790789.381
1999	177425071633.235
2000	184431063932.066
2001	193640050098.629
2002	201519749373.591
2003	215396189015.866
2004	229996937630.247
2005	247104384423.583
2006	268656870170.882
2007	291160881117.451
2008	309764823912.13
2009	327113704703.215
2010	348291841779.53
2011	367390086288.809
2012	390975564546.4
2013	415440783359.953
2014	440476597360.349
2015	460342161588.836
2016	483164254914.352
2017	508088412470.727
2018	533246114027.046