Year constant 2010 US$ 2003 5566.98326248812 2004 5794.98464719125 2005 5977.64915065539 2006 7059.59002157714 2007 7713.81434643983 2008 8471.5490696819 2009 7702.84942077038 2010 8392.30583771036 2011 9746.51989993845 2012 9987.37928880763 2013 10325.0999110489 2014 10350.0849069239 2015 9878.26428968682 2016 9688.18028320169 2017 9957.09543278481