Year	Number
1996	69.0217361450195
1998	73.3695678710938
2000	69.5652160644531
2002	63.2432441711426
2003	62.1621627807617
2004	63.6815910339355
2005	65.1960754394531
2006	67.1568603515625
2007	70.8737869262695
2008	66.9902877807617
2009	68.4210510253906
2010	69.3779907226563
2011	73.459716796875
2012	73.459716796875
2013	73.9336471557617
2014	73.5576934814453
2015	70
2016	68.0952377319336
2017	66.1904754638672
2018	63.3333320617676
2019	62.8571434020996
2020	61.4285697937012
2021	60
2022	54.7169799804688