Year current US$ 2007 17576799 2008 111587652 2009 124873401 2010 125136149 2011 132014506.00000001 2012 122033466 2013 132208217.99999999 2014 3349878351 2015 2905280044 2016 3088371032 2017 3456638591 2018 3932409518 2019 3910021207 2020 3780596375