Year current US$ 1965 79999.9982118607 1966 109999.999403954 1967 70000.0002980232 1968 100000.00149011599 1969 629999.995231628 1970 2259999.99046326 1972 -19999.9995529652 1973 140000.000596046 1974 -180000.00715255702 1975 -180000.00715255702 1976 360000.01430511504 1977 150000.005960464 1978 1059999.9427795399 1979 1039999.96185303 1980 860000.014305115 1981 430000.00715255697 1982 -29999.999329447703 1983 70000.0002980232 1984 360000.01430511504 1985 9999.99977648258 1986 79999.9982118607 1987 19999.9995529652 1988 129999.995231628 1989 589999.973773956 1990 1870000.00476837 1991 850000.023841858 1992 150000.005960464 1993 1769999.98092651 1994 2079999.9237060498 1995 3470000.02861023 1996 1909999.9666214 1997 2230000.01907349 1998 3140000.10490417 1999 4159999.8474121103 2000 1940000.0572204601 2001 1850000.02384186 2002 2119999.8855590797 2003 -39999.9991059303 2004 -1210000.03814697 2005 949999.988079071 2006 280000.001192093 2007 -439999.997615814 2008 300000.011920929 2009 540000.021457672 2010 1399999.97615814 2011 620000.004768372 2012 4059999.94277954 2013 119999.997317791 2014 1139999.98569489 2015 1190000.0572204601 2016 970000.028610229 2017 70000.0002980232 2020 150000.005960464 2021 39999.9991059303 2022 0