Year | Value | 2022 | 93.71642280636 | 2021 | 93.416587510236 | 2020 | 93.693359282206 | 2019 | 93.906135592002 | 2018 | 93.718986295326 | 2017 | 93.659965206082 | 2016 | 93.613319038909 | 2015 | 93.555603172193 | 2014 | 93.554260655111 | 2013 | 93.405280650568 | 2012 | 93.246780252461 | 2011 | 93.179687768556 | 2010 | 92.954864406132 | 2009 | 92.906775971196 | 2008 | 92.982276575664 | 2007 | 92.780349764492 | 2006 | 92.597549708104 | 2005 | 92.530288492921 | 2004 | 92.425850023981 | 2003 | 92.433472147136 | 2002 | 92.639015537681 | 2001 | 92.519455046782 | 2000 | 92.43546296847 | 1999 | 92.342856878028 | 1998 | 92.055328370116 | 1997 | 91.72500591321 | 1996 | 91.557479620824 | 1995 | 91.442771686368 | 1994 | 91.200287365612 | 1993 | 91.182357586877 | 1992 | 91.303207551386 | 1991 | 90.981834424482 |
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