Year current US$ 1966 9999.99977648258 1967 19999.9995529652 1968 19999.9995529652 1969 19999.9995529652 1970 29999.999329447703 1971 59999.9986588955 1972 79999.9982118607 1973 70000.0002980232 1974 109999.999403954 1975 90000.0035762787 1976 109999.999403954 1977 310000.002384186 1978 370000.00476837205 1979 180000.00715255702 1980 709999.978542328 1981 660000.026226044 1982 579999.983310699 1983 490000.009536743 1984 600000.023841858 1985 920000.016689301 1986 680000.007152557 1987 839999.973773956 1988 639999.985694885 1989 3490000.00953674 1990 319999.99284744303 1991 1659999.9666214 1992 1769999.98092651 1993 1649999.97615814 1994 2359999.89509583 1995 2160000.08583069 1996 2200000.04768372 1997 2289999.96185303 1998 1440000.0572204601 1999 1509999.9904632599 2000 1639999.98569489 2001 1210000.03814697 2002 1289999.96185303 2003 1210000.03814697 2004 1230000.01907349 2005 1230000.01907349 2006 3319999.9332428 2007 1799999.95231628 2008 2339999.91416931 2009 1710000.03814697 2010 4949999.80926514 2011 4130000.11444092 2012 7519999.98092651 2013 7389999.8664856 2014 5489999.771118159 2015 3460000.03814697 2016 2980000.01907349 2017 1169999.95708466 2018 1620000.00476837 2019 1529999.97138977 2020 879999.995231628 2021 1509999.9904632599 2022 1610000.01430511