Year	constant 2010 US$
2006	2212.50289289863
2007	2193.17139213836
2008	2146.10046614557
2009	2158.24583510612
2010	2104.67114619551
2011	2119.38504396994
2012	2120.87796010843
2013	2144.95501168517
2014	2221.97023961678
2015	2265.66885002783
2016	2251.29934670567
2017	2249.83778410746