Year US Dollars adjusted for inflation) 1960 1426700787.8148 1961 1461512079.03896 1962 1481163659.27636 1963 1514852143.68055 1964 1592896740.23479 1965 1669256805.57371 1966 1797833914.74399 1967 1919112030.61857 1968 2010632020.93449 1969 2157176393.11709 1970 2300913213.27413 1971 2413769101.05254 1972 2513711105.47439 1973 2457002406.38262 1974 2573788653.00656 1975 2484514490.32084 1976 2616460447.93154 1977 2658009436.03654 1978 2786025034.80171 1979 2876983728.70277 1980 2759074461.26861 1981 2700119934.54665 1982 2634427710.94385 1983 2584456494.74268 1984 2529993837.27137 1985 2508657939.80888 1986 2466547655.28902 1987 2441842695.39586 1988 2391982754.12254 1989 1754078045.23354 1990 858956846.84243 1991 736768416.46201 1992 478268199.47505 1993 320557388.2835 1994 250796568.13636 1995 240097055.84385 1996 269199729.27947 1997 555304687.98109 1998 723051855.69326 1999 880253798.08018 2000 1132146638.24602 2001 1165190798.01995 2002 1209034189.54096 2003 844568142.71147 2004 866700939.8495 2005 912479873.14422 2006 985872107.76344 2007 1079873956.95073 2008 1157051893.00929 2009 1218376789.68453 2010 1292697100 2011 1398698238.23309 2012 1510516487.30938 2013 1641989954.45724 2014 1653502629.68398 2015 1653502629.68398 2016 1627046587.60903 2017 1666984015.17253