Year	Number
1996	49.7267761230469
1998	50.8196716308594
2000	44.8087425231934
2002	43.7837829589844
2003	45.9459457397461
2004	49.7512435913086
2005	38.235294342041
2006	51.2195129394531
2007	52.9126205444336
2008	53.8834953308105
2009	52.6315803527832
2010	54.0669860839844
2011	54.028434753418
2012	44.0758285522461
2013	45.0236968994141
2014	47.5961532592773
2015	50.476188659668
2016	58.5714302062988
2017	60.476188659668
2018	60.476188659668
2019	60
2020	53.8095245361328
2021	49.0476188659668
2022	58.0188674926758