Year | Value | 2020 | 77.407250175642 | 2019 | 73.870016587875 | 2018 | 72.798975136855 | 2017 | 74.861000154674 | 2016 | 72.270144412732 | 2015 | 71.071078630766 | 2014 | 67.533276660506 | 2013 | 62.558940177863 | 2012 | 62.095446642481 | 2011 | 69.497896506301 | 2010 | 76.641733552042 | 2009 | 94.155298785991 | 2008 | 90.777775771769 | 2007 | 92.029957865154 | 2006 | 82.21498128654 | 2005 | 84.382230530394 | 2004 | 89.487010674452 | 2003 | 90.453866032208 | 2002 | 94.064863501116 | 2001 | 91.546120760545 |
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