Year current US$ 1993 140000.000596046 1994 180000.00715255702 1995 159999.99642372102 1997 70000.0002980232 2003 119999.997317791 2004 70000.0002980232 2005 59999.9986588955 2008 180000.00715255702 2009 119999.997317791 2010 19999.9995529652 2012 29999.999329447703 2013 9999.99977648258 2016 79999.9982118607 2017 50000.0007450581 2018 129999.995231628 2019 170000.00178813902 2020 170000.00178813902 2021 90000.0035762787 2022 59999.9986588955