Year	constant 2011 international $
1990	30582.4279689061
1991	31529.5755371053
1992	31718.1342985297
1993	31476.0747682099
1994	31680.5379268254
1995	32425.2299540043
1996	33345.8768289587
1997	33624.4805638555
1998	33154.8445767021
1999	33010.9809171096
2000	33871.858216914
2001	33927.643634745
2002	33888.7834810872
2003	34333.1336749166
2004	35078.261989854
2005	35658.1486655825
2006	36141.5852354162
2007	36697.2408992343
2008	36278.3694728356
2009	34317.670824811
2010	35749.7566788784
2011	35774.6967129559
2012	36367.5970553161
2013	37148.6027499704
2014	37337.3174057788
2015	37834.053405521
2016	38108.4056927427
2017	38907.3681373532
2018	39293.5003692264