Year | Value | 2021 | 38.888888888889 | 2020 | 38.888888888889 | 2019 | 38.888888888889 | 2018 | 38.888888888889 | 2017 | 38.888888888889 | 2016 | 38.888888888889 | 2015 | 38.888888888889 | 2014 | 38.888888888889 | 2013 | 38.888888888889 | 2012 | 41.666666666667 | 2011 | 47.222222222222 | 2010 | 47.222222222222 | 2009 | 47.222222222222 | 2008 | 47.222222222222 | 2007 | 47.222222222222 | 2006 | 47.222222222222 | 2005 | 47.222222222222 | 2004 | 47.222222222222 | 2003 | 47.222222222222 | 2002 | 47.222222222222 | 2001 | 47.222222222222 | 2000 | 47.222222222222 | 1999 | 47.222222222222 | 1998 | 47.222222222222 | 1997 | 47.222222222222 | 1996 | 47.222222222222 | 1995 | 47.222222222222 | 1994 | 47.222222222222 | 1993 | 47.222222222222 | 1992 | 47.222222222222 | 1991 | 47.222222222222 |
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