Year | Value | 2014 | 1,375.8621541028 | 2013 | 1,328.0553716599 | 2012 | 1,276.2302582627 | 2011 | 1,212.516721653 | 2010 | 1,139.5912561955 | 2009 | 1,107.3227371309 | 2008 | 1,080.3076017413 | 2007 | 955.80674348251 | 2006 | 865.58263969298 | 2005 | 797.74803391602 | 2004 | 827.58306806862 | 2003 | 719.48482180233 | 2002 | 692.31663191822 | 2001 | 650.34341542083 | 2000 | 637.62685911472 | 1999 | 636.31733237212 | 1998 | 686.49268469297 | 1997 | 652.74489027963 | 1996 | 608.39622458041 | 1995 | 547.06568239243 | 1994 | 543.1079486752 | 1993 | 509.39433274328 | 1992 | 513.00037693937 | 1991 | 498.77043262674 | 1990 | 470.62935048652 | 1989 | 436.32901852415 | 1988 | 442.13578062041 | 1987 | 442.26885670777 | 1986 | 409.26877873522 | 1985 | 389.4401214742 | 1984 | 403.52526587948 | 1983 | 400.64243765229 | 1982 | 396.028885962 | 1981 | 377.24771274867 | 1980 | 353.12865473715 | 1979 | 321.36361169279 | 1978 | 286.66936869726 | 1977 | 247.77980634543 | 1976 | 219.73210754305 | 1975 | 193.08208831507 | 1974 | 171.60742183289 | 1973 | 160.70369170604 | 1972 | 147.08515786783 | 1971 | 142.18358719586 |
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