Year	constant 2010 US$
2008	15376485680.5395
2009	15956261034.9565
2010	16692407763.5438
2011	15986099545.2784
2012	17523164001.9613
2013	18263030013.2209
2014	20129581817.6129
2015	22893633518.1434
2016	25449379257.6806
2017	26407629018.1942
2018	28459908360.2953