Year	Number
1996	70.6521759033203
1998	75
2000	77.1739120483398
2002	74.594596862793
2003	72.9729766845703
2004	74.1293563842773
2005	71.0784301757813
2006	69.1176452636719
2007	70.3883514404297
2008	69.4174728393555
2009	69.8564605712891
2010	68.4210510253906
2011	69.6682434082031
2012	73.459716796875
2013	72.0379180908203
2014	75.961540222168
2015	69.0476226806641
2016	75.2380981445313
2017	71.9047622680664
2018	73.3333358764648
2019	69.0476226806641
2020	70.9523773193359
2021	71.9047622680664
2022	72.1698150634766