Year | Value | 2012 | 68.218969546389 | 2011 | 66.356804416972 | 2010 | 64.054032659022 | 2009 | 68.292771519328 | 2008 | 76.031038407115 | 2007 | 64.526821851852 | 2006 | 63.476537372466 | 2005 | 84.155799227367 | 2004 | 99.10285153075 | 2003 | 96.263013214376 | 2002 | 86.182709991158 | 2001 | 98.715809180419 | 2000 | 89.733587976259 | 1999 | 130.88725504862 | 1998 | 141.01262236513 | 1997 | 130.55639513951 | 1993 | 80.439121756487 | 1991 | 111.86440677966 | 1990 | 113.33333333333 | 1989 | 110.71428571429 | 1988 | 103.7037037037 | 1987 | 108 |
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