Year	constant 2010 US$
2007	453.022257977842
2008	441.036147148034
2009	623.986680486971
2010	670.452945475422
2011	621.64384734309
2012	688.401159603844
2013	717.560431085781
2014	738.933755300859
2015	660.370271930661
2016	609.729104918719
2017	516.855272089445