Year	Number
1996	63.3165817260742
1998	65.5
2000	58.7064666748047
2002	63.1840782165527
2003	64.6766204833984
2004	67.3076934814453
2005	67.9425811767578
2006	69.3779907226563
2007	69.8564605712891
2008	70.6730804443359
2009	69.6682434082031
2010	72.9857788085938
2011	72.3004684448242
2012	75.5868530273438
2013	73.2394332885742
2014	78.8461532592773
2015	80.476188659668
2016	81.9047622680664
2017	80
2018	78.5714263916016
2019	80.476188659668
2020	80.9523773193359
2021	82.8571395874023
2022	83.0188674926758