Year	constant 2011 international $
1995	12753.5770868733
1996	13689.1542735005
1997	14670.2559202247
1998	14952.5813387387
1999	14876.8338635732
2000	15591.1182885497
2001	16762.0869290588
2002	17632.2768811271
2003	18611.0678848454
2004	19334.2128719957
2005	20102.8692663171
2006	21076.481816342
2007	22194.9395272839
2008	22649.621218964
2009	21020.205147284
2010	20757.6244713517
2011	20758.557316629
2012	20343.0618969146
2013	20299.4823783223
2014	20364.5023107551
2015	21025.9334211841
2016	21922.0039475783
2017	22834.9447883873
2018	23636.7922625142