Year	constant 2011 international $
2008	33866701041.1719
2009	35143655932.362
2010	36765018686.9905
2011	35209375234.5213
2012	38594758833.6732
2013	40224313306.29
2014	44335392602.9857
2015	50423214914.8605
2016	56052243465.1031
2017	58162788022.3135
2018	62682932116.0888