Year	Number
1996	80.8743133544922
1998	81.420768737793
2000	80.3278656005859
2002	79.4594573974609
2003	70.8108139038086
2004	65.1741256713867
2005	61.764705657959
2006	60
2007	56.3106803894043
2008	48.5436897277832
2009	40.6698570251465
2010	47.8468894958496
2011	45.0236968994141
2012	48.3412322998047
2013	45.0236968994141
2014	41.3461532592773
2015	43.3333320617676
2016	41.9047622680664
2017	34.761905670166
2018	34.761905670166
2019	43.8095245361328
2020	48.5714302062988
2021	63.8095245361328
2022	46.698112487793