Year	Number
1996	27.8688526153564
1998	45.9016380310059
2000	53.5519142150879
2002	56.7567558288574
2003	63.7837829589844
2004	64.1791076660156
2005	61.764705657959
2006	64.8780517578125
2007	65.0485458374023
2008	66.9902877807617
2009	66.9856491088867
2010	68.8995208740234
2011	68.2464447021484
2012	71.0900497436523
2013	69.6682434082031
2014	75
2015	74.2857131958008
2016	73.3333358764648
2017	72.8571395874023
2018	71.4285736083984
2019	70
2020	68.5714263916016
2021	67.6190490722656
2022	62.7358474731445