Year constant 2010 US$ 2006 77127659.5744681 2007 74654255.3191489 2008 74787234.0425532 2009 83111702.1276596 2010 76542553.1914894 2011 77765957.4468085 2012 79388297.8723404 2013 80531914.893617 2014 89680851.0638298 2015 86914893.6170213 2016 92925531.9148936 2017 92127659.5744681 2018 95585106.3829787