Year current US$ 2011 10010000.2288818 2012 72230003.3569336 2013 67029998.779296905 2014 56180000.3051758 2015 33869998.9318848 2016 31559999.4659424 2017 37639999.3896484 2018 37849998.4741211 2019 55790000.9155273 2020 72360000.6103516 2021 85669998.1689453 2022 74419998.1689453