Year current US$ 2012 385205.388069153 2013 428038.120269775 2014 524030.02977371204 2015 579370.021820068 2016 517139.971256256 2017 667299.98588562 2018 1073654.0555954 2019 1950649.97673035 2020 1208916.90254211 2021 1455500.00667572 2022 1490899.4436264