Year	constant 2011 international $
1990	386.122772263379
1991	394.687596670114
1992	361.090770420585
1993	377.308550504068
1994	385.082495233095
1995	380.0883333831
1996	467.710603528405
1997	504.611755969732
1998	550.464535383516
1999	578.718848693592
2000	572.893251318871
2001	627.698149307659
2002	663.163147116481
2003	685.559115624515
2004	717.599290742989
2005	757.970442630247
2006	809.484941653008
2007	845.796601149873
2008	879.474994782014
2009	910.086595957805
2010	944.668191885739
2011	984.465229232715
2012	1026.67074011275
2013	1069.95093784626
2014	1117.87252933788
2015	1158.27942644078
2016	1167.84056070095
2017	1176.84642406467
2018	1180.37332323