Year current US$ 2012 17330600.7385254 2013 43157260.8947754 2016 26854850.769043002 2017 56677280.4260254 2018 3652126.78909302 2019 47822597.5036621 2020 36014022.8271484 2021 41713611.6027832 2022 444299.9958992