Year	Number
1996	9.8360652923584
1998	10.9289617538452
2000	10.382513999939
2002	6.48648643493652
2003	8.64864826202393
2004	11.9402980804443
2005	8.33333301544189
2006	8.29268264770508
2007	5.82524251937866
2008	9.22330093383789
2009	7.65550231933594
2010	8.61244010925293
2011	8.53080558776855
2012	10.9004735946655
2013	11.8483409881592
2014	13.4615383148193
2015	13.3333330154419
2016	10.9523811340332
2017	9.0476188659668
2018	10
2019	11.4285717010498
2020	10
2021	9.0476188659668
2022	8.96226406097412