Year	constant 2011 international $
2003	14808.864934832
2004	15356.6608048821
2005	15636.5403697555
2006	17419.0123094498
2007	18820.0539050611
2008	19556.5111267157
2009	19443.483808246
2010	20326.9539177729
2011	21119.2570348615
2012	21571.7484029651
2013	22175.1115040536
2014	22541.039199912
2015	23545.0319882859
2016	23611.5779951844
2017	23642.6567016284