Year | Value | 2022 | 86.066596527944 | 2021 | 85.427544189149 | 2020 | 86.566106052474 | 2019 | 86.542402931177 | 2018 | 86.791275888885 | 2017 | 86.386672061201 | 2016 | 85.967109994347 | 2015 | 85.78154691178 | 2014 | 85.999343167909 | 2013 | 86.561642563671 | 2012 | 86.422978386464 | 2011 | 86.632125478803 | 2010 | 86.602251041598 | 2009 | 86.385304425584 | 2008 | 87.195249518267 | 2007 | 87.418879032477 | 2006 | 87.126442494142 | 2005 | 87.350978797996 | 2004 | 87.537376851761 | 2003 | 87.243596820373 | 2002 | 87.139548994133 | 2001 | 87.019501537569 | 2000 | 86.475379664869 | 1999 | 86.232587644633 | 1998 | 85.413044162649 | 1997 | 84.525173126169 | 1996 | 83.396127611321 | 1995 | 84.179541341243 | 1994 | 84.037416410046 | 1993 | 84.048701929725 | 1992 | 84.10162052652 | 1991 | 84.183843670077 |
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