Year US Dollars adjusted for inflation) 1960 551677358.59452 1961 618812727.22419 1962 642164571.23277 1963 674270836.51275 1964 770597244.1579 1965 889729364.22583 1966 973441500.86749 1967 1026984400.30633 1968 1078576931.95576 1969 1195396179.45215 1970 1225571596.8311 1971 1225571596.8311 1972 1319023361.98946 1973 1369640672.47232 1974 1435833339.63889 1975 1470875443.63811 1976 1440700101.63733 1977 1540959651.63655 1978 1711165340.73355 1979 1622736719.75554 1980 1859282339.1104 1981 1797643669.85664 1982 1733244837.26307 1983 1639406826.81256 1984 1730484975.43599 1985 1826622971.01486 1986 1855602423.20758 1987 1865069004.98452 1988 1988953784.79479 1989 2069705739.73807 1990 2064662774.71294 1991 2050210806.54708 1992 1968598335.16247 1993 1671422126.76474 1994 1921841515.26526 1995 2072625977.95603 1996 2255767595.65452 1997 2580087820.14977 1998 2520748984.98985 1999 2583307708.87565 2000 2563068019.81933 2001 2521371868.52752 2002 2498121012.08473 2003 2621887861.20628 2004 2677447377.50821 2005 2709052152.60689 2006 2818834121.81118 2007 2883398217.58234 2008 2947567674.93768 2009 3051036045.03104 2010 3172945644.5585 2011 3327904819.97373 2012 3488321264.18983 2013 3626730618.31805 2014 3839682314.56077 2015 4046443147.77333 2016 4264876064.32914 2017 4502250154.26713