Year | Value | 2021 | 31.44797 | 2020 | 23.53957 | 2019 | 49.84901 | 2018 | 49.64306 | 2017 | 49.5077 | 2016 | 38.89446 | 2015 | 37.669008 | 2014 | 44.61 | 2013 | 58.199004 | 2012 | 53.977 | 2011 | 50.977 | 2010 | 42.379 | 2009 | 14.584 | 2008 | 16.487 | 2007 | 17.212 | 2006 | 16.382 | 2005 | 15.825 | 2004 | 12.557 | 2003 | 20.796 | 2002 | 20.263 | 2001 | 11.82 | 2000 | 11.752 | 1999 | 9.8000001907 | 1998 | 24 | 1997 | 16.7000007629 | 1996 | 16.7000007629 | 1995 | 17.6000003815 | 1994 | 8 | 1993 | 8 | 1992 | 32.2000007629 |
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