Year	constant 2011 international $
1990	36268.5057311075
1991	35690.4407565408
1992	36367.7538324649
1993	36884.7666210776
1994	37921.8621053613
1995	38485.2254855496
1996	39411.6530281049
1997	40674.9414273946
1998	42000.0513662817
1999	43522.0639373742
2000	44862.1777532778
2001	44888.9685977788
2002	45288.4298981045
2003	46143.9756816894
2004	47428.3041600926
2005	48630.8825489812
2006	49528.6677866112
2007	49987.3554931436
2008	49489.1245150265
2009	47784.0108567263
2010	48610.9533428471
2011	49058.9245339295
2012	49757.8051758161
2013	50325.8693191098
2014	51186.3979424541
2015	52179.764594316
2016	52574.3949106607
2017	53400.4914460832
2018	54500.2541615937