Year current US$ 1965 39999.9991059303 1966 29999.999329447703 1967 59999.9986588955 1968 29999.999329447703 1980 1000000 1981 1000000 1982 2000000 1983 3000000 1984 3000000 1985 2000000 1986 4000000 1987 1000000 1988 1000000 1989 4000000 1990 8000000 1991 2000000 1992 5000000 1994 2000000 1998 129999.995231628 1999 109999.999403954 2000 109999.999403954 2001 70000.0002980232 2002 19999.9995529652 2003 39999.9991059303 2005 9999.99977648258 2006 109999.999403954 2007 140000.000596046 2008 9999.99977648258 2009 9999.99977648258 2010 9999.99977648258 2011 19999.9995529652 2012 29999.999329447703 2013 230000.004172325 2014 70000.0002980232 2015 29999.999329447703