Year	Number
1996	32.6633148193359
1998	32.5
2000	23.8805961608887
2002	36.3184089660645
2003	16.9154224395752
2004	12.9807691574097
2005	12.9186601638794
2006	10.0478467941284
2007	9.09090900421143
2008	11.5384616851807
2009	14.2180099487305
2010	13.2701425552368
2011	14.0845069885254
2012	9.38967132568359
2013	2.81690144538879
2014	2.88461542129517
2015	4.2857141494751
2016	4.7619047164917
2017	5.2380952835083
2018	6.1904764175415
2019	5.2380952835083
2020	4.7619047164917
2021	6.66666650772095
2022	6.60377359390259