Year | Value | 2021 | 32.60230173 | 2020 | 32.55014678 | 2019 | 32.12939197 | 2018 | 29 | 2017 | 26 | 2016 | 23.2 | 2015 | 22 | 2014 | 21.4 | 2013 | 13 | 2012 | 7.7 | 2011 | 4.7 | 2010 | 2.8 | 2009 | 2.3 | 2008 | 1.9 | 2007 | 1.7 | 2006 | 1.5 | 2005 | 1.143366827 | 2004 | 0.464814618 | 2003 | 0.370682065 | 2002 | 0.270376746 | 2001 | 0.136013867 | 2000 | 0.105045562 | 1999 | 0.071964087 | 1998 | 0.018453724 | 1997 | 0.005673746 | 1996 | 0.000775929 |
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