Year | Value | 2021 | 55.36371347 | 2020 | 51.45837417 | 2019 | 45.03137342 | 2018 | 38.7 | 2017 | 33.2 | 2016 | 28.5 | 2015 | 24.5 | 2014 | 21 | 2013 | 19.1 | 2012 | 16.1 | 2011 | 13.8 | 2010 | 11.5 | 2009 | 9.3 | 2008 | 8 | 2007 | 6.77 | 2006 | 5.545036083 | 2005 | 3.549155718 | 2004 | 1.286137641 | 2003 | 0.558576245 | 2002 | 0.320461976 | 2001 | 0.08990137 | 2000 | 0.064080808 | 1999 | 0.041038723 | 1998 | 0.025231461 | 1997 | 0.017237401 | 1996 | 0.00883298 |
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