Year | Value | 2021 | 34.98405528 | 2020 | 29.07583302 | 2019 | 20.72732716 | 2018 | 15.5 | 2017 | 12.36022497 | 2016 | 11.31 | 2015 | 7.12 | 2014 | 5.7 | 2013 | 4.5 | 2012 | 4 | 2011 | 3.5 | 2010 | 3 | 2009 | 2.6 | 2008 | 2.4 | 2007 | 2.2 | 2006 | 2 | 2005 | 1.8 | 2004 | 1.5 | 2003 | 1.2 | 2002 | 1 | 2001 | 0.9 | 2000 | 0.8 | 1999 | 0.590363264 | 1998 | 0.305583935 | 1997 | 0.211139465 | 1996 | 0.010929139 |
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