Year current US$ 2012 365388.959646225 2013 414143.443107605 2014 444420.00985145604 2015 297710.001468658 2016 408780.008554459 2017 368680.000305176 2018 749935.0905418401 2019 1670369.98271942 2020 1367257.47585297 2021 891099.989414215 2022 720564.782619476