Year	constant 2015 US$
2008	2287.565049081642
2009	2297.362951332321
2010	2302.5202943186255
2011	2082.3599643361877
2012	1074.654868132995
2013	1171.4823787072394
2014	1199.421044780471
2015	1071.7777647554512