Year current US$ 2011 1230000.01907349 2012 961598.038673401 2013 1400011.06262207 2014 959543.228149414 2015 2081538.9156341602 2016 1427192.21115112 2017 1394721.7464446998 2018 801509.7975730901 2019 2716247.79701233 2020 613448.441028595 2021 2540299.8924255404 2022 822828.412055969