Year	constant 2011 international $
1990	11632.5985558147
1991	12710.5997442147
1992	13356.0292258218
1993	14126.2535194184
1994	15272.297435483
1995	16566.4157034687
1996	17655.5314536141
1997	18526.581379357
1998	17386.9868151211
1999	19216.1414689039
2000	20756.7798971433
2001	21530.2633630352
2002	22997.1871439252
2003	23549.3664532734
2004	24605.5348610405
2005	25516.8241870414
2006	26697.0326128912
2007	28013.7044173449
2008	28588.3721177634
2009	28642.8379022063
2010	30352.1048190303
2011	31228.5106952266
2012	31776.8970259682
2013	32548.7155154884
2014	33425.6895931418
2015	34177.6544703221
2016	35020.4115062331
2017	35938.3742161469
2018	36776.5192834919