Year	constant 2010 US$
2000	614.312359313008
2001	609.677179115426
2002	617.811266028939
2003	424.231862841808
2004	427.21118312232
2005	438.247567042964
2006	457.699212126197
2007	482.124952731092
2008	495.679015083664
2009	501.615734791463
2010	513.445698620224
2011	538.11623500132
2012	564.520844221776
2013	597.381389680455
2014	586.229360784297
2015	571.453129531788
2016	548.268143607989
2017	548.010538342081
2018	541.271324140142