Year	constant 2010 US$
2006	582.442643895432
2007	604.776697171116
2008	573.433723690502
2009	560.145537714329
2010	537.741566397523
2011	547.05166343627
2012	577.227584856068
2013	612.714241088849
2014	585.223757539793
2015	596.359885532896
2016	607.993897176112
2017	608.381284050033
2018	640.568705289919