Year current US$ 1985 9999.99977648258 1987 19999.9995529652 1988 39999.9991059303 1989 29999.999329447703 1990 29999.999329447703 1992 19999.9995529652 1993 19999.9995529652 1994 9999.99977648258 2000 79999.9982118607 2001 9999.99977648258 2011 90000.0035762787 2012 200000.00298023198 2013 180000.00715255702 2014 90000.0035762787 2015 129999.995231628 2016 79999.9982118607 2017 50000.0007450581 2018 29999.999329447703 2019 9999.99977648258