Year | Value | 2021 | 11.65 | 2020 | 11.7 | 2019 | 12.55 | 2018 | 12.58 | 2016 | 12.55 | 2015 | 12.73 | 2014 | 13.63 | 2013 | 14.65 | 2012 | 14.14 | 2011 | 14.39 | 2010 | 14.79 | 2009 | 14.72 | 2008 | 14.06 | 2007 | 14.97 | 2006 | 14.86 | 2005 | 14.72 | 2004 | 16.17 | 2003 | 16.98 | 2002 | 17.37 | 2001 | 20.34 | 2000 | 24.05 | 1999 | 24.54 | 1998 | 45.83 | 1995 | 50.26 |
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