Year current US$ 2012 45140197.7539063 2013 55791042.327880904 2014 46151229.8583984 2015 61738819.122314505 2016 54293159.4848633 2017 61816631.3171387 2018 75875717.1630859 2019 122011672.97363299 2020 89122436.5234375 2021 92166793.8232422 2022 82611838.73191474