Year | Value | 2021 | 79.47306769 | 2020 | 80.35854111 | 2019 | 79.78450689 | 2017 | 80.71019081 | 2016 | 76.81767491 | 2015 | 75.7 | 2014 | 68 | 2013 | 64.6 | 2012 | 64 | 2011 | 63.2 | 2010 | 63 | 2009 | 55.7 | 2008 | 49.2 | 2007 | 43.5 | 2006 | 38.5 | 2005 | 34 | 2004 | 24.73767754 | 2003 | 22.96978429 | 2002 | 21.15238176 | 2001 | 7.714726556 | 2000 | 5.86281024 | 1999 | 4.400440044 | 1998 | 3.343810607 | 1997 | 2.258559942 | 1996 | 1.945569823 |
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