Year	Number
1996	2.17391300201416
1998	3.26086950302124
2000	3.26086950302124
2002	4.32432413101196
2003	4.32432413101196
2004	8.4577112197876
2005	7.35294103622437
2006	8.33333301544189
2007	9.22330093383789
2008	11.6504850387573
2009	10.5263156890869
2010	13.8755979537964
2011	9.00473976135254
2012	8.05687236785889
2013	6.63507127761841
2014	7.21153831481934
2015	6.66666650772095
2016	6.1904764175415
2017	8.09523773193359
2018	8.5714282989502
2019	9.5238094329834
2020	10.4761905670166
2021	9.5238094329834
2022	9.90566062927246