Year current US$ 2011 1190000.0572204601 2012 804192.304611206 2013 1443676.23329163 2014 1067586.77959442 2015 2189452.40974426 2016 1504151.5827179 2017 1210602.2834777802 2018 1110922.09815979 2019 1322888.01670074 2020 1390155.31539917 2021 3313400.0301361103 2022 2821767.56858826