Year current US$ 2014 1845835.92414856 2015 106459.900736809 2016 75687.9970431328 2017 1033547.04380035 2018 9943717.00286865 2019 8455093.38378906 2020 2420350.07476807 2021 1410640.0012969999 2022 5328668.59436035