Year current US$ 1994 9999.99977648258 1995 59999.9986588955 1996 70000.0002980232 1997 59999.9986588955 1998 79999.9982118607 1999 19999.9995529652 2000 59999.9986588955 2001 59999.9986588955 2004 9999.99977648258 2005 29999.999329447703 2006 109999.999403954 2007 90000.0035762787 2008 59999.9986588955 2009 39999.9991059303 2010 119999.997317791 2011 259999.990463257 2012 159999.99642372102 2013 159999.99642372102 2014 150000.005960464 2015 29999.999329447703 2016 19999.9995529652 2017 50000.0007450581 2018 109999.999403954 2020 19999.9995529652 2021 19999.9995529652 2022 29999.999329447703