Year | Value | 2014 | 71.34130452196 | 2013 | 72.046479731316 | 2012 | 72.706661599216 | 2011 | 67.34421675318 | 2010 | 64.651230407849 | 2009 | 68.106644903964 | 2008 | 73.217426097736 | 2007 | 70.784683084891 | 2006 | 66.450505942726 | 2005 | 65.42836308287 | 2004 | 63.814049853085 | 2003 | 64.51256979927 | 2002 | 60.183609059582 | 2001 | 69.586014174284 | 2000 | 68.072520599623 | 1999 | 64.121154406254 | 1998 | 70.497978417824 | 1997 | 70.372755509747 | 1996 | 57.650767805508 | 1995 | 84.318982086429 | 1994 | 77.068290397039 | 1993 | 82.510921153332 | 1992 | 93.308497536797 | 1991 | 98.180491617914 | 1990 | 98.07050022963 |
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