Year current US$ 2009 55648610604 2010 65670154380 2011 66492792221 2012 66465543627 2013 67074154607 2014 70927135129 2015 64451562526 2016 63195049573 2017 74120472736 2018 90499815076 2019 86900596733 2020 92100009675 2021 108683179737 2022 66214448416