Year constant 2010 US$ 2006 5411560386.50335 2007 6243915516.81619 2008 6766464060.69234 2009 5064172390.40501 2010 3785069951.08316 2011 4752682861.07315 2012 6765489812.87068 2013 4996855113.94402 2014 4941244206.5075 2015 4806620461.62669 2016 5394616988.76504 2017 5294880838.91535