Year current US$ 2010 19999.9995529652 2011 29999.999329447703 2012 19999.9995529652 2013 19999.9995529652 2014 9999.99977648258 2015 39999.9991059303 2016 90000.0035762787 2017 90000.0035762787 2018 70000.0002980232 2019 39999.9991059303 2020 50000.0007450581 2021 59999.9986588955 2022 129999.995231628