Year current US$ 1973 9999.99977648258 1974 9999.99977648258 1975 9999.99977648258 1977 19999.9995529652 1978 19999.9995529652 1979 19999.9995529652 1980 50000.0007450581 1981 9999.99977648258 1988 19999.9995529652 1991 9999.99977648258 1994 9999.99977648258 1996 129999.995231628 1997 70000.0002980232 1998 50000.0007450581 1999 100000.00149011599 2000 129999.995231628 2001 119999.997317791 2003 19999.9995529652 2004 29999.999329447703 2005 59999.9986588955 2006 19999.9995529652 2007 119999.997317791 2008 29999.999329447703 2009 29999.999329447703 2010 19999.9995529652 2013 39999.9991059303 2014 1700000.04768372 2015 9999.99977648258 2016 90000.0035762787 2017 79999.9982118607 2018 9999.99977648258 2019 39999.9991059303 2020 29999.999329447703