Year | Value | 2022 | 82.425527097288 | 2021 | 82.501359791961 | 2020 | 82.002240195767 | 2019 | 82.308295807131 | 2018 | 81.966942252603 | 2017 | 81.680746598061 | 2016 | 81.354384943848 | 2015 | 80.542827721384 | 2014 | 79.712572539465 | 2013 | 79.356149587726 | 2012 | 78.890192241183 | 2011 | 78.628643301697 | 2010 | 78.11796241686 | 2009 | 78.898208344992 | 2008 | 79.216190794084 | 2007 | 78.617866786603 | 2006 | 77.995728024328 | 2005 | 77.040939742011 | 2004 | 76.549077377664 | 2003 | 75.332678064528 | 2002 | 74.892460017861 | 2001 | 72.976971361948 | 2000 | 73.039379277362 | 1999 | 73.582623744592 | 1998 | 74.033212400943 | 1997 | 74.063769479112 | 1996 | 74.936392793416 | 1995 | 74.619212509127 | 1994 | 75.546537787776 | 1993 | 75.842053983153 | 1992 | 76.132258752759 | 1991 | 76.632254464662 |
|