Year | Value | 2014 | 2,474.5227846949 | 2013 | 2,453.5288180645 | 2012 | 2,387.302927074 | 2011 | 2,234.4767230693 | 2010 | 2,261.2168336674 | 2009 | 2,062.4599609989 | 2008 | 2,071.5372990438 | 2007 | 2,051.7151742753 | 2006 | 1,982.5084203391 | 2005 | 1,897.3628475636 | 2004 | 1,814.4887049904 | 2003 | 1,705.2123841454 | 2002 | 1,612.599123863 | 2001 | 1,502.1097579382 | 2000 | 1,446.8046543115 | 1999 | 1,358.3354723443 | 1998 | 1,360.4587450179 | 1997 | 1,412.9532777038 | 1996 | 1,384.8950495113 | 1995 | 1,255.5028718964 | 1994 | 1,118.0062688405 | 1993 | 1,024.853628048 | 1992 | 913.63993108367 | 1991 | 814.79314808084 | 1990 | 733.14258460466 | 1989 | 636.91114085851 | 1988 | 558.05599419818 | 1987 | 500.92075514308 | 1986 | 450.3316807038 | 1985 | 420.06532108242 | 1984 | 394.23154311093 | 1983 | 361.66466855869 | 1982 | 332.3958438455 | 1981 | 310.31099697472 | 1980 | 301.55516682993 | 1979 | 289.1872286941 | 1978 | 271.43818115317 | 1977 | 242.13440144465 | 1976 | 214.07514097119 | 1975 | 190.08302514863 | 1974 | 171.17659896001 |
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