Year current US$ 2010 85703997188 2011 95369900899 2012 99345629989 2013 105439211507 2014 110247506302 2015 106099421519 2016 104771237650 2017 147628423079 2018 158301095210 2019 163499431378 2020 157228113927 2021 176815296582