Year	Number
2003	52.7638206481934
2004	51.9417457580566
2005	47.5728149414063
2006	45.4106292724609
2007	42.9951705932617
2008	41.3461532592773
2009	61.6113739013672
2010	67.2985763549805
2011	48.8151664733887
2012	43.1279602050781
2013	48.8151664733887
2014	51.9047622680664
2015	79.0476226806641
2016	78.5714263916016
2017	77.6190490722656
2018	78.7735824584961
2019	71.698112487793
2020	71.2264175415039
2021	68.3962249755859
2022	71.698112487793