| Year | Value | | 2022 | 88.64690554 | | 2021 | 81.83 | | 2020 | 76.01 | | 2019 | 70.6225837 | | 2018 | 64.39999371 | | 2017 | 63.3 | | 2016 | 59.9 | | 2015 | 56.7 | | 2014 | 53.67 | | 2013 | 46.6 | | 2012 | 43.4 | | 2011 | 41.08 | | 2010 | 37.4 | | 2009 | 32.23 | | 2008 | 24.358 | | 2007 | 21.176 | | 2006 | 18.41 | | 2005 | 16.005 | | 2004 | 4.400904826 | | 2003 | 4.130616356 | | 2002 | 3.100092235 | | 2001 | 1.836854839 | | 2000 | 1.111306207 |
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