Year	Number
1996	64.4808731079102
1998	60.6557388305664
2000	61.2021865844727
2002	58.9189186096191
2003	60.5405387878418
2004	59.2039794921875
2005	58.3333320617676
2006	55.1219520568848
2007	53.8834953308105
2008	57.2815551757813
2009	59.3301429748535
2010	62.6794242858887
2011	62.5592422485352
2012	63.9810409545898
2013	63.5071105957031
2014	68.75
2015	66.6666641235352
2016	65.7142868041992
2017	61.4285697937012
2018	60.476188659668
2019	59.523811340332
2020	51.4285697937012
2021	49.0476188659668
2022	48.113208770752