Year | Value | 2022 | 86.600830093765 | 2021 | 87.009868813527 | 2020 | 87.318803024857 | 2019 | 88.415316330996 | 2018 | 88.483308230908 | 2017 | 87.855697806852 | 2016 | 87.122246734601 | 2015 | 87.389488149901 | 2014 | 88.455963746677 | 2013 | 88.445119132016 | 2012 | 88.63415662502 | 2011 | 88.658519824999 | 2010 | 88.508158589937 | 2009 | 88.475574542889 | 2008 | 89.754738876668 | 2007 | 89.028945441334 | 2006 | 88.338930708357 | 2005 | 88.526651449097 | 2004 | 86.490124104178 | 2003 | 86.494181855628 | 2002 | 86.293927840488 | 2001 | 84.750449821484 | 2000 | 85.117157027369 | 1999 | 83.045970606532 | 1998 | 82.63705604391 | 1997 | 80.572353492164 | 1996 | 85.384082323824 | 1995 | 86.063490013861 | 1994 | 86.29280049496 | 1993 | 87.286819921388 | 1992 | 88.654341832482 | 1991 | 89.84560505732 |
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