Year Number 1996 0.537634432315826 1998 0.534759342670441 2000 0 2002 2.11640214920044 2003 6.34920644760132 2004 1.47783255577087 2005 4.3902440071106 2006 1.46341466903687 2007 1.94174754619598 2008 2.42718458175659 2009 3.82775115966797 2010 3.33333325386047 2011 4.7393364906311 2012 8.53080558776855 2013 5.68720388412476 2014 5.76923084259033 2015 3.80952382087708 2016 5.2380952835083 2017 6.1904764175415 2018 5.7142858505249 2019 8.09523773193359 2020 9.0476188659668 2021 8.5714282989502 2022 10.8490562438965