Year	constant 2011 international $
1990	21080.1526249723
1991	21554.305406973
1992	21595.6798163684
1993	21073.1906148546
1994	21403.6950407425
1995	21751.7976657722
1996	22203.0080035423
1997	23100.5629881383
1998	23839.8714436813
1999	24193.6117982148
2000	24924.1929590723
2001	25891.0802353168
2002	26724.0491927232
2003	28008.5648580696
2004	29325.8125233169
2005	29203.349835644
2006	30555.5631117281
2007	31243.2192236839
2008	30929.9656803224
2009	29749.4168198963
2010	28134.0336150803
2011	25427.5937095584
2012	24521.1145517591
2013	23714.4781389332
2014	24241.7690782934
2015	24165.3831764066
2016	24186.7984748269
2017	24647.0508634419