Year	Number
1996	45.226131439209
1998	49
2000	48.2587051391602
2002	55.2238807678223
2003	60.6965179443359
2004	58.6538467407227
2005	57.8947372436523
2006	60.7655487060547
2007	63.1578941345215
2008	64.9038467407227
2009	65.8767776489258
2010	64.9289093017578
2011	65.2582168579102
2012	66.6666641235352
2013	65.7276992797852
2014	74.038459777832
2015	69.0476226806641
2016	73.8095245361328
2017	73.8095245361328
2018	73.3333358764648
2019	75.7142868041992
2020	74.7619018554688
2021	74.2857131958008
2022	71.698112487793