Year current US$ 1966 39999.9991059303 1967 79999.9982118607 1968 79999.9982118607 1969 150000.005960464 1970 109999.999403954 1971 109999.999403954 1972 140000.000596046 1973 270000.010728836 1974 330000.013113022 1975 389999.98569488496 1976 870000.004768372 1977 170000.00178813902 1978 310000.002384186 1979 400000.00596046395 1980 490000.009536743 1981 300000.011920929 1982 119999.997317791 1983 270000.010728836 1984 430000.00715255697 1985 409999.99642372096 1986 750000 1987 600000.023841858 1988 860000.014305115 1989 589999.973773956 1990 3890000.10490417 1991 1360000.01430511 1992 1240000.0095367401 1993 1750000 1994 1080000.04291534 1995 1009999.99046326 1996 740000.009536743 1997 860000.014305115 1998 730000.019073486 1999 349999.99403953605 2000 540000.021457672 2001 319999.99284744303 2002 430000.00715255697 2003 409999.99642372096 2004 389999.98569488496 2005 540000.021457672 2006 289999.99165535 2007 899999.976158142 2008 1360000.01430511 2009 980000.019073486 2010 579999.983310699 2011 649999.976158142 2012 439999.997615814 2013 560000.002384186 2014 79999.9982118607 2015 50000.0007450581 2016 9999.99977648258 2017 59999.9986588955 2018 79999.9982118607 2019 50000.0007450581 2020 70000.0002980232 2021 59999.9986588955 2022 2289999.96185303