Year current US$ 1994 70000.0002980232 1995 39999.9991059303 1996 29999.999329447703 2000 90000.0035762787 2004 119999.997317791 2006 70000.0002980232 2008 39999.9991059303 2009 9999.99977648258 2011 109999.999403954 2013 29999.999329447703 2016 140000.000596046 2017 29999.999329447703 2018 100000.00149011599 2019 29999.999329447703 2020 79999.9982118607 2021 759999.990463257 2022 180000.00715255702