Year current US$ 2011 17370000.8392334 2012 34389999.3896484 2013 34569999.6948242 2014 91730003.3569336 2015 56740001.6784668 2016 123860000.61035201 2017 151550003.05175802 2018 137020004.272461 2019 143089996.33789098 2020 155220001.220703 2021 137050003.05175802 2022 98000000