Year | Value | 2022 | 93.387839706693 | 2021 | 93.335312279384 | 2020 | 93.257431027629 | 2019 | 93.306350033621 | 2018 | 93.179726335709 | 2017 | 92.855117341148 | 2016 | 92.519767481951 | 2015 | 92.801940511705 | 2014 | 92.819259045726 | 2013 | 92.758826350332 | 2012 | 93.128197508135 | 2011 | 92.960044284175 | 2010 | 93.239341278858 | 2009 | 93.586006219158 | 2008 | 94.135947299651 | 2007 | 94.33197806932 | 2006 | 94.530975363308 | 2005 | 94.680130022803 | 2004 | 94.856368844936 | 2003 | 94.945731053111 | 2002 | 95.134101352892 | 2001 | 95.356095634534 | 2000 | 95.499755881971 | 1999 | 95.63289697214 | 1998 | 95.900039300654 | 1997 | 95.839858853127 | 1996 | 97.366829943697 | 1995 | 97.590027198899 | 1994 | 98.039703730122 | 1993 | 98.594153467408 | 1992 | 99.13602366054 | 1991 | 99.192024649879 |
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