Year current US$ 2012 1234566.6885376 2013 1758017.18235016 2014 1044360.0416183501 2015 1625570.05882263 2016 1427549.95822906 2017 2206680.0594329797 2018 2136176.58615112 2019 2426779.98542786 2020 1531184.07726288 2021 2004199.98168945 2022 1805874.2284774801