Year Number 1996 0.502512574195862 1998 0.5 2000 0.497512429952621 2002 0 2003 0 2004 0 2005 0 2006 0.956937789916992 2007 1.43540668487549 2008 2.88461542129517 2009 2.36966824531555 2010 2.36966824531555 2011 1.4084507226944 2012 2.3474178314209 2013 3.28638505935669 2014 3.8461537361145 2015 4.2857141494751 2016 8.09523773193359 2017 8.09523773193359 2018 7.14285707473755 2019 8.5714282989502 2020 8.09523773193359 2021 5.2380952835083 2022 5.18867921829224