Year	constant 2011 international $
1990	22471.858092199
1991	22059.5573031191
1992	23499.5687855615
1993	23099.4585992206
1994	23961.5768439109
1995	25523.7180126115
1996	25433.7503083012
1997	25738.0086962488
1998	26978.0083482024
1999	28011.1537174725
2000	29368.0612158564
2001	30201.5553871857
2002	30968.9907342059
2003	31397.4787562609
2004	32537.4632321429
2005	33628.6893248723
2006	34631.2588517068
2007	35630.0507839928
2008	36013.6191905943
2009	34353.1632353752
2010	33913.2951547692
2011	33192.336901327
2012	31749.5615603048
2013	29977.9136856447
2014	29912.190030924
2015	30673.3025195789
2016	32002.2342212493
2017	33047.5457880328