Year current US$ 2005 56602197910.71569 2006 60846508473.15243 2007 76077119597.24983 2008 91696030176.04366 2009 78249661827.40092 2010 78234405210.61615 2011 92930188768.58482 2012 97291038399.56459 2013 109574343991.43515 2014 108623246494.86473 2015 91594085452.29793 2016 85964198034.1434 2017 101716945309.78499 2018 115984030644.05879 2019 121077049953.36484