Year | Value | 2022 | 83.137378402967 | 2021 | 83.105480206106 | 2020 | 83.079215657768 | 2019 | 85.814703848813 | 2018 | 85.876356606178 | 2017 | 85.909538876498 | 2016 | 85.944315145246 | 2015 | 86.087831042575 | 2014 | 86.21284821706 | 2013 | 86.232994910518 | 2012 | 86.268318571441 | 2011 | 86.323206758737 | 2010 | 86.317838119715 | 2009 | 86.201711223839 | 2008 | 86.262055528495 | 2007 | 86.468442974152 | 2006 | 86.379104203072 | 2005 | 86.25983053161 | 2004 | 86.299229567372 | 2003 | 86.306843267108 | 2002 | 86.353394100662 | 2001 | 86.492329149233 | 2000 | 86.727070608064 | 1999 | 86.817741480582 | 1998 | 86.941580756014 | 1997 | 87.11810012837 | 1996 | 87.02926107854 | 1995 | 87.114381924832 | 1994 | 87.132533501719 | 1993 | 87.169936622057 | 1992 | 87.16343795067 | 1991 | 87.153540903541 |
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