Year US Dollars adjusted for inflation) 1960 596608253.67072 1961 514597677.3735 1962 561236477.60162 1963 584445892.53885 1964 621108404.90066 1965 645749176.59743 1966 675537540.2394 1967 768907087.02731 1968 766616638.35264 1969 755427553.10521 1970 916527545.70543 1971 941702987.47846 1972 881396658.48232 1973 942116521.31088 1974 935268845.71275 1975 941796276.24958 1976 1016599961.55636 1977 1133198416.79516 1978 1122539824.57715 1979 1141229606.95515 1980 1152539828.31177 1981 1292726423.68618 1982 1279106260.4105 1983 1326629240.55262 1984 1328692732.80246 1985 1485254991.58896 1986 1533528459.0815 1987 1617920004.19458 1988 1699317953.86504 1989 1722250287.54589 1990 1782525984.41627 1991 1871595892.56201 1992 1890498980.49241 1993 1772531844.12476 1994 1704643874.55341 1995 1569636079.67758 1996 1444065193.28183 1997 1421104556.74908 1998 1488607023.0819 1999 1473572092.20535 2000 1460945582.56049 2001 1490979805.70997 2002 1557276512.30296 2003 1538219684.21923 2004 1612571959.3767 2005 1627085107.05727 2006 1714698065.64965 2007 1796760633.53677 2008 1887463244.56885 2009 1952928499.631 2010 2026864469.36388 2011 2111823040.97987 2012 2196704928.33329 2013 2297622743.75537 2014 2404713060.02967 2015 2310420828.20521 2016 2297241391.84594 2017 2309167268.07383