Year	constant 2011 international $
2010	9919617830.47064
2011	11489616850.9255
2012	12983431441.5355
2013	14987307521.6461
2014	15931147082.9506
2015	17228026146.4368
2016	16776123406.6423
2017	16732995272.8133
2018	17383215759.7923