Year	constant 2011 international $
2008	34431181839.3547
2009	36167078722.6892
2010	38153886954.9423
2011	36383425753.1343
2012	19617170973.6121
2013	22192852779.8577
2014	22941746346.783
2015	20465917016.1275
2016	18176991037.2173