Year	constant 2011 international $
2003	13127.7900050428
2004	13633.4501238106
2005	13929.17060347
2006	15523.4945586409
2007	16800.9512566125
2008	17464.3311208494
2009	17359.6215209211
2010	18146.3306741029
2011	18634.9947399927
2012	19072.7931772598
2013	19608.5848423884
2014	19952.8894721739
2015	20841.2349413419
2016	20929.4451034954
2017	21017.6856811025