Year	constant 2010 US$
2007	1616.22758395599
2008	1482.42488957117
2009	1401.83623318986
2010	1558.06668811615
2011	1403.56621715993
2012	1517.06708031704
2013	1444.54486506624
2014	1487.38052804683
2015	1578.55176029906
2016	1428.57594504798
2017	1412.29129780199
2018	1419.99967390496