Year US Dollars adjusted for inflation) 1960 141860740.51374 1961 148283178.09754 1962 153761146.90323 1963 144127490.52754 1964 149416573.89306 1965 150738813.5515 1966 150738813.5515 1967 136382730.1308 1968 145260844.74581 1969 149416532.31581 1970 165472667.85255 1971 170383980.33773 1972 214396699.37794 1973 190595803.44447 1974 173784126.14705 1975 160561396.94462 1976 177222564.60228 1977 200668058.21513 1978 220287488.6845 1979 227739503.67419 1980 233303620.53888 1981 244068261.22968 1982 254993805.87237 1983 260521750.53082 1984 277684007.18803 1985 294839070.98124 1986 311352223.63406 1987 312716165.2728 1988 356728510.11777 1989 361740813.73969 1990 376752778.25629 1991 381031700.791 1992 405330484.27588 1993 422561177.08421 1994 417288724.61811 1995 449701266.58062 1996 455489484.81501 1997 471458141.82079 1998 490738343.51923 1999 504041857.31559 2000 512295232.19387 2001 521052481.74733 2002 554000247.63046 2003 596601710.12307 2004 621398173.27312 2005 636858589.99261 2006 685822577.25385 2007 674975779.91992 2008 719976499.11746 2009 704863751.35037 2010 681225962.96296 2011 678369231.79222 2012 687735089.10999 2013 700336363.17831 2014 707228997.86598 2015 720117944.91704 2016 729264939.59843 2017 740906569.19293