Year current US$ 1960 1390889414.521476 1961 1366605304.1544185 1962 1489969151.604129 1963 1458861578.702017 1964 1473655172.413793 1965 1612822222.2222223 1966 1505288888.888889 1967 1612822222.2222223 1968 1956888888.888889 1969 2042888888.888889 1970 2171911111.111111 1971 2463204545.4545455 1972 2793090909.090909 1973 3263139534.883721 1974 4838441860.4651165 1975 6863837209.302325 1976 9069255813.95349 1977 12692465116.27907 1978 14650348837.209303 1979 13727674418.60465 1980 14627837209.302326 1981 16518209302.32558 1982 18971186046.511627 1983 8799209302.32558 1984 10508123515.439425 1985 10466520000 1986 11927109278.350521 1987 10598117241.37931 1988 15910262068.965517 1989 8884312274.801817 1990 9493861738.048687 1991 13566194456.6652 1992 16901309773.41897 1993 15791603706.024065 1994 12606010774.410774 1995 16337757127.065872 1996 14558793913.251858 1997 18872294153.890938 1998 20714179095.265636 1999 18770148169.54889 2000 21218741604.876617 2001 23851668950.696587 2002 16852884830.734774 2003 13984394467.979069 2004 21555923687.37321 2005 29784686206.484028 2006 40634711690.731255 2007 57748932929.66931 2008 66373413223.91122 2009 67439626970.06435 2010 69227358957.50357 2011 62331506073.252045 2012 92395390156.90205 2013 109494012521.88853 2014 151446288628.62418