Year US Dollars adjusted for inflation) 1960 3333228175.42212 1961 3348946382.21766 1962 3485813551.97164 1963 3951145083.56489 1964 3718263847.95786 1965 4115844769.08342 1966 3916153089.07983 1967 3684110880.31147 1968 4128390344.11123 1969 4264286266.68776 1970 4476619177.51576 1971 4661501868.33128 1972 4775048659.43712 1973 4728820233.05256 1974 4981451575.58329 1975 5188316772.8846 1976 5503786990.3065 1977 5831388166.40491 1978 6211467377.00038 1979 6534543030.90387 1980 7053290217.82045 1981 7501580034.72373 1982 7921959309.83461 1983 8269819885.19247 1984 8677747608.38401 1985 8925150213.41148 1986 8830780248.57113 1987 8477051707.97686 1988 7514699543.41027 1989 7792390041.95992 1990 8011896469.83656 1991 7959769716.74249 1992 8728758488.44639 1993 9255924021.27763 1994 9948078165.27153 1995 10639275753.1675 1996 11324734004.9744 1997 11964760742.6246 1998 12666639111.0325 1999 14053019226.0891 2000 15984737489.9273 2001 17798045642.4078 2002 19938352012.1209 2003 22698616844.6237 2004 25777607411.1761 2005 29275358077.56549 2006 33103433579.0233 2007 37073010378.8848 2008 40874960811.6237 2009 45187272895.30941 2010 49540813342.48341 2011 52310879190.5434 2012 56146663569.59511 2013 60877582017.38929 2014 65742457738.05 2015 70339509334.18359 2016 74469832820.4068 2017 79212697713.041