Year US Dollars adjusted for inflation) 1960 219043459.83739 1961 223128171.68806 1962 257337768.67645 1963 284654352.94453 1964 308141519.85262 1965 314779213.49333 1966 313502716.45108 1967 347712325.73393 1968 346435804.10275 1969 351797025.29013 1970 359455896.89351 1971 377837456.76088 1972 377071548.69995 1973 476636842.6605 1974 528971991.94683 1975 457489374.73221 1976 508037966.65679 1977 618836144.4399 1978 732187586.78567 1979 753376500.84915 1980 732697979.05562 1981 737787578.70761 1982 770672275.35927 1983 785979101.08432 1984 829482241.26188 1985 851133795.90729 1986 891008188.92359 1987 897510127.12169 1988 974713221.97983 1989 1031200235.46491 1990 1093541170.67739 1991 1169723886.71286 1992 1251094152.37417 1993 1295004632.64635 1994 1372444272.94155 1995 1417610570.97194 1996 1496954733.98587 1997 1552396005.17444 1998 1576266513.38852 1999 1583769933.82215 2000 1645149675.74906 2001 1703743037.83098 2002 1716075341.56846 2003 1794324547.55696 2004 1824691227.86675 2005 1887937269.03195 2006 1967798807.56991 2007 2062901802.18173 2008 2201931763.93845 2009 2249368160.49686 2010 2385950663.8256 2011 2550613089.94092 2012 2703600695.52472 2013 2753429274.61273 2014 2839383677.7351 2015 2910839259.42914 2016 2980616573.37731 2017 3147259170.03227