Year	constant 2010 US$
2002	1522.62861460513
2003	1572.47296190192
2004	1684.61888172169
2005	1688.09072502301
2006	1756.18798710089
2007	1991.12215853451
2008	2211.04008200111
2009	2238.16333685074
2010	2294.20660361798
2011	2186.91229689226
2012	2124.1155867993
2013	2159.68736424957
2014	2150.19871379154
2015	2094.0762033081
2016	2039.91932443961
2017	2005.57730346016
2018	2001.19034984923