Year	constant 2010 US$
2007	13643.8106897804
2008	13862.7774543489
2009	14054.4444339457
2010	14778.7940070741
2011	15132.1912876244
2012	16268.1843199345
2013	17362.0963563682
2014	15147.5739107243
2015	14008.4111087943
2016	13595.0436654223
2017	13260.5798832204
2018	13431.606573073