Year current US$ 1968 9999.99977648258 1969 9999.99977648258 1970 59999.9986588955 1971 19999.9995529652 1972 59999.9986588955 1973 90000.0035762787 1974 90000.0035762787 1975 39999.9991059303 1976 9999.99977648258 1977 29999.999329447703 1978 200000.00298023198 1979 39999.9991059303 1980 39999.9991059303 1981 70000.0002980232 1982 90000.0035762787 1983 109999.999403954 1984 70000.0002980232 1985 159999.99642372102 1986 259999.990463257 1987 430000.00715255697 1988 699999.988079071 1989 259999.990463257 1990 589999.973773956 1991 270000.010728836 1992 180000.00715255702 1993 150000.005960464 1994 219999.998807907 1995 300000.011920929 1996 310000.002384186 1997 239999.994635582 1998 140000.000596046 1999 109999.999403954 2000 50000.0007450581 2002 39999.9991059303 2003 200000.00298023198 2004 259999.990463257 2005 100000.00149011599 2006 50000.0007450581 2007 19999.9995529652 2008 29999.999329447703 2009 29999.999329447703 2011 9999.99977648258 2012 9999.99977648258 2013 19999.9995529652 2014 29999.999329447703 2015 79999.9982118607 2016 39999.9991059303 2017 0 2018 19999.9995529652 2019 50000.0007450581 2020 29999.999329447703 2021 0 2022 19999.9995529652