Year	Number
2004	56.7164192199707
2005	67.6470565795898
2006	60.9756088256836
2007	58.2524261474609
2008	57.2815551757813
2009	59.8086128234863
2010	60.2870826721191
2011	60.6635055541992
2012	50.2369651794434
2013	49.7630348205566
2014	39.9038467407227
2015	42.3809509277344
2016	40.9523811340332
2017	50.476188659668
2018	54.2857131958008
2019	57.6190490722656
2020	60.9523811340332
2021	61.4285697937012
2022	62.7358474731445