Year current US$ 2011 170000.00178813902 2012 11713.7497290969 2013 32383.311539888404 2014 96277.1326303482 2015 256816.92361831697 2016 346421.599388123 2017 374519.58656311 2018 661065.220832825 2019 382119.86422538804 2020 314107.596874237 2021 660799.980163574 2022 497342.46730804397