Year current US$ 1965 9999.99977648258 1966 19999.9995529652 1967 29999.999329447703 1968 29999.999329447703 1969 29999.999329447703 1970 39999.9991059303 1971 50000.0007450581 1972 79999.9982118607 1973 140000.000596046 1974 150000.005960464 1975 180000.00715255702 1976 150000.005960464 1977 280000.001192093 1978 1139999.98569489 1979 1490000.0095367401 1980 1470000.02861023 1981 850000.023841858 1982 1759999.9904632599 1983 2349999.90463257 1984 730000.019073486 1985 769999.980926514 1986 879999.995231628 1987 4739999.771118159 1988 2269999.98092651 1989 2990000.00953674 1990 2410000.08583069 1991 7360000.1335144 1992 2509999.99046326 1993 1720000.02861023 1994 1730000.01907349 1995 5210000.03814697 1996 3740000.00953674 1997 449999.988079071 1998 1580000.04291534 1999 490000.009536743 2000 379999.99523162795 2001 1429999.94754791 2002 1620000.00476837 2003 -1379999.99523163 2004 2150000.09536743 2005 11590000.1525879 2006 6420000.07629395 2007 2740000.00953674 2008 1460000.03814697 2009 699999.988079071 2010 310000.002384186 2011 1679999.94754791 2012 1730000.01907349 2013 1929999.94754791 2014 2119999.8855590797 2015 939999.997615814 2016 600000.023841858 2017 680000.007152557 2018 589999.973773956 2019 879999.995231628 2020 2269999.98092651 2021 850000.023841858 2022 639999.985694885