Year | Value | 2022 | 97.905704115628 | 2021 | 97.911506103898 | 2020 | 97.915288904998 | 2019 | 98.045212548838 | 2018 | 98.135839914899 | 2017 | 98.176375169339 | 2016 | 98.266291199054 | 2015 | 98.942727074224 | 2014 | 98.922202052619 | 2013 | 98.904342137658 | 2012 | 98.880953206249 | 2011 | 98.843612101891 | 2010 | 98.787668203103 | 2009 | 98.745510489666 | 2008 | 98.738225973874 | 2007 | 98.41836329792 | 2006 | 97.988573752296 | 2005 | 97.328079494103 | 2004 | 97.085324174763 | 2003 | 96.866617257726 | 2002 | 96.695918379793 | 2001 | 96.660993494409 | 2000 | 96.707345178632 | 1999 | 96.644938960071 | 1998 | 96.607062467362 | 1997 | 96.664286773401 | 1996 | 96.661632394893 | 1995 | 96.589438407664 | 1994 | 96.520658632754 | 1993 | 96.456373685669 | 1992 | 96.351979592528 | 1991 | 96.237603746673 |
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