Year	constant 2011 international $
1990	28140.4309783435
1991	28752.025760246
1992	29013.6517997699
1993	28702.822242085
1994	29328.9845248149
1995	29983.8443603748
1996	30429.3082482879
1997	31193.4556922506
1998	32059.2035153181
1999	32921.4345602118
2000	34083.1659384902
2001	34703.2812661088
2002	34905.1698935211
2003	34987.7760950607
2004	35615.3764078502
2005	36053.6155284706
2006	37067.7137645295
2007	38030.2351837358
2008	38026.2844733417
2009	36169.6895966214
2010	36818.9119570305
2011	37457.8871055582
2012	37036.0813875897
2013	36808.8060879281
2014	37196.2850638253
2015	37861.9668332514
2016	38465.583371086
2017	39346.0430992813
2018	40032.2019220343