Year current US$ 1976 39999.999105930285 1977 109999.9975413084 1978 79999.99821186066 1979 19999.9995529652 1980 9999.99977648258 1981 9999.99977648258 1982 9999.99977648258 1984 29999.999329447703 1985 9999.99977648258 1986 29999.999329447783 1988 19999.9995529652 1990 29999.999329447703 1992 29999.999329447703 1993 19999.9995529652 1994 9999.99977648258 1995 89999.99985098839 1996 140000.000596046 1997 89999.99798834328 1999 89999.99798834321 2000 89999.99985098839 2001 29999.999329447783 2002 2410000.042989851 2003 9800000.347197052 2004 2910000.0727921696 2005 3229999.9389797477 2006 3419999.9067932386 2007 4190000.05722046 2008 2130000.010132791 2009 550000.011920929 2010 1350000.023841858 2011 1950000.017881393 2012 3030000.06079674 2013 2670000.1135468506 2014 5880000.002682213 2015 3899999.981746074 2016 3670000.0632554274 2017 9199999.943375599 2018 5949999.960139396 2019 7720000.116154562 2020 8840000.046417113 2021 6930000.113323338 2022 2979999.9985843897