Year	Number
1996	63.3165817260742
1998	64
2000	63.1840782165527
2002	67.164176940918
2003	66.6666641235352
2004	63.9423065185547
2005	61.2440185546875
2006	62.6794242858887
2007	61.2440185546875
2008	58.1730766296387
2009	58.2938385009766
2010	58.2938385009766
2011	57.7464790344238
2012	58.2159614562988
2013	53.521125793457
2014	61.538459777832
2015	62.8571434020996
2016	64.2857131958008
2017	60.9523811340332
2018	60.476188659668
2019	60.9523811340332
2020	59.523811340332
2021	58.5714302062988
2022	56.6037750244141