Year	Number
1996	63.3165817260742
1998	65.5
2000	70.1492538452148
2002	67.164176940918
2003	68.1592025756836
2004	68.75
2005	67.9425811767578
2006	70.3349304199219
2007	71.7703323364258
2008	79.3269195556641
2009	79.1469192504883
2010	79.620849609375
2011	72.7699508666992
2012	73.2394332885742
2013	71.8309860229492
2014	76.4423065185547
2015	73.3333358764648
2016	62.3809509277344
2017	70
2018	67.6190490722656
2019	65.2380981445313
2020	59.523811340332
2021	61.9047622680664
2022	58.4905662536621