Year	constant 2011 international $
2006	12959.1944919389
2007	13767.0472413685
2008	14786.0688344954
2009	13706.0917908085
2010	13920.8473154458
2011	14588.9048607676
2012	14310.3477680594
2013	14847.2438599663
2014	15001.1596479753
2015	15646.8656343452
2016	15882.8891678273
2017	16854.7644876844
2018	17510.6989912384