| Year | Value | | 2023 | 85.849060058594 | | 2022 | 82.547172546387 | | 2021 | 81.904762268066 | | 2020 | 78.095237731934 | | 2019 | 73.809524536133 | | 2018 | 73.809524536133 | | 2017 | 74.285713195801 | | 2016 | 73.809524536133 | | 2015 | 77.619049072266 | | 2014 | 78.365386962891 | | 2013 | 81.516586303711 | | 2012 | 77.725120544434 | | 2011 | 74.407585144043 | | 2010 | 76.076553344727 | | 2009 | 78.468902587891 | | 2008 | 72.330093383789 | | 2007 | 68.446601867676 | | 2006 | 70.24390411377 | | 2005 | 65.68627166748 | | 2004 | 69.154228210449 | | 2003 | 65.405403137207 | | 2002 | 65.945945739746 | | 2000 | 67.213111877441 | | 1998 | 69.398910522461 | | 1996 | 70.491806030273 |
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