| Year | Value | | 2022 | 95.95386476 | | 2021 | 96.92468156 | | 2020 | 92.00434653 | | 2019 | 88.94925269 | | 2018 | 88.16563603 | | 2017 | 84.45226789 | | 2016 | 84.45226789 | | 2015 | 83.2 | | 2014 | 82.1 | | 2013 | 80.90205685 | | 2012 | 72 | | 2011 | 71 | | 2010 | 71 | | 2009 | 69 | | 2008 | 69 | | 2007 | 69.9 | | 2006 | 59 | | 2005 | 61 | | 2004 | 62 | | 2003 | 53.83794329 | | 2002 | 47 | | 2001 | 41.67042518 | | 2000 | 36 | | 1999 | 24.15543693 | | 1998 | 19.59076716 | | 1997 | 13.47162042 | | 1996 | 8.34995903 | | 1995 | 2.873418722 | | 1994 | 1.185203797 | | 1993 | 0.763278139 | | 1992 | 0.471368155 | | 1991 | 0.161504498 |
|