Year | Value | 2014 | 2,186.3758215203 | 2013 | 2,172.1758878621 | 2012 | 2,283.0713549146 | 2011 | 2,246.9112504221 | 2010 | 2,046.8238298763 | 2009 | 2,020.7127946665 | 2008 | 2,067.7946541739 | 2007 | 2,063.9322615825 | 2006 | 2,033.684424427 | 2005 | 2,007.0483599188 | 2004 | 1,937.6249431038 | 2003 | 2,013.7491658762 | 2002 | 1,857.990720124 | 2001 | 1,850.8307036718 | 2000 | 1,819.3495228256 | 1999 | 1,709.350960468 | 1998 | 1,665.3954121973 | 1997 | 1,551.601194955 | 1996 | 1,468.9710733197 | 1995 | 1,446.633535169 | 1994 | 1,430.3552497834 | 1993 | 1,342.5168485709 | 1992 | 1,349.9085644111 | 1991 | 1,328.9967636492 | 1990 | 1,217.272136656 | 1989 | 1,265.2780315675 | 1988 | 1,204.3804433186 | 1987 | 1,165.7371406455 | 1986 | 1,115.391384369 | 1985 | 1,093.4260262774 | 1984 | 1,050.6240783226 | 1983 | 1,008.624962906 | 1982 | 986.52948861258 | 1981 | 928.99752431505 | 1980 | 887.79019084299 | 1979 | 842.39119231238 | 1978 | 799.26396353615 | 1977 | 744.62150213841 | 1976 | 703.890984371 | 1975 | 666.12278679358 | 1974 | 638.62390044723 | 1973 | 593.93567449587 | 1972 | 563.03820322625 | 1971 | 519.04059285893 |
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