Year	Number
1996	61.4130439758301
1998	59.7826080322266
2000	60.8695640563965
2002	59.4594612121582
2003	58.3783798217773
2004	49.2537307739258
2005	54.9019622802734
2006	44.1176452636719
2007	40.2912635803223
2008	40.2912635803223
2009	39.2344512939453
2010	40.1913871765137
2011	38.3886260986328
2012	36.0189590454102
2013	35.5450248718262
2014	34.1346168518066
2015	35.7142868041992
2016	33.3333320617676
2017	30.4761905670166
2018	28.0952377319336
2019	30.9523811340332
2020	31.9047622680664
2021	36.6666679382324
2022	35.8490562438965