Year current US$ 1960 449999.988079071 1961 500000 1962 500000 1963 559999.98934567 1964 19999.9995529652 1965 490000.009536743 1967 280000.001192093 1968 609999.991953373 1969 240000.002086163 1970 500000 1971 419999.986886978 1972 1329999.9833107 1973 5269999.861717219 1974 1680000.01460314 1975 -169999.986886978 1976 -109999.999403954 1977 -9999.99977648258 1978 0 1979 0 1980 0 1981 289999.99165535 1982 539999.99910593 1983 59999.9986588955 1984 490000.01139938796 1985 409999.994561076 1986 659999.996423721 1987 980000.026524067 1988 1100000.0014901198 1989 2630000.0436604 1990 17900000.2089888 1991 37950000.5301088 1992 269789996.204898 1993 33489999.981597103 1994 81950000.4053116 1995 66000000.944361106 1996 55680000.9012222 1997 58850000.3758818 1998 48560000.434517905 1999 37999999.8249114 2000 40870000.1072139 2001 46729999.769479 2002 36520000.1634657 2003 31479999.8626113 2004 28939999.839291003 2005 8439999.93801117 2006 5729999.95946884 2007 6879999.8909235 2008 3660000.0411272002 2009 1359999.98450279 2010 1880000.00268221 2011 259999.996051192 2012 619999.98986721 2013 299999.989569187 2014 240000.002086163 2015 110000.001266599 2016 179999.999701977 2017 109999.999403954 2018 9999.99977648258 2019 9999.99977648258 2020 0 2021 840000.016614795 2022 829999.9833107