Year | Value | 2022 | 83.640352364759 | 2021 | 83.11538402165 | 2020 | 82.75467964809 | 2019 | 83.382258373139 | 2018 | 83.315027932438 | 2017 | 83.242862329968 | 2016 | 83.185712797104 | 2015 | 83.163791275454 | 2014 | 83.386995521403 | 2013 | 83.94832777461 | 2012 | 84.637204386266 | 2011 | 84.848022523691 | 2010 | 84.909384615439 | 2009 | 85.170814211318 | 2008 | 85.653868167386 | 2007 | 85.906689890085 | 2006 | 86.104317393776 | 2005 | 86.32795358074 | 2004 | 87.898123766481 | 2003 | 88.587288080535 | 2002 | 88.328361595478 | 2001 | 88.448841815641 | 2000 | 88.762097466786 | 1999 | 88.505381561808 | 1998 | 88.351480111473 | 1997 | 87.623521316242 | 1996 | 87.741982204384 | 1995 | 87.298714597724 | 1994 | 87.608266948884 | 1993 | 88.248403360948 | 1992 | 88.614956618391 | 1991 | 88.555389267094 |
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