| Year | Value | | 2022 | 93.695582959362 | | 2021 | 90.093764132456 | | 2020 | 85.697355275095 | | 2019 | 86.602205347421 | | 2018 | 85.355776811002 | | 2017 | 83.787052235203 | | 2016 | 84.849090493109 | | 2015 | 84.550210378278 | | 2014 | 87.802647834165 | | 2013 | 89.65086730748 | | 2012 | 89.227921755856 | | 2011 | 90.81083300636 | | 2010 | 94.589768675188 | | 2009 | 95.829778662496 | | 2008 | 94.250981154543 | | 2007 | 95.594742606791 | | 2006 | 96.523839176021 | | 2005 | 96.977745930258 | | 2004 | 96.735900269013 | | 2003 | 98.345198089375 | | 2002 | 97.59942125355 | | 2001 | 94.883184692144 | | 2000 | 93.713715393138 | | 1999 | 91.758835517329 | | 1998 | 91.306577729757 | | 1997 | 91.781678639651 | | 1996 | 91.009686172664 | | 1995 | 91.09619112824 | | 1994 | 93.676131341166 |
|