Year	Number
2004	54.2288551330566
2005	50
2006	47.0588226318359
2007	47.0873794555664
2008	38.3495140075684
2009	45.4545440673828
2010	45.4545440673828
2011	42.6540298461914
2012	42.6540298461914
2013	44.5497627258301
2014	53.3653831481934
2015	51.4285697937012
2016	53.8095245361328
2017	56.1904754638672
2018	59.0476188659668
2019	60.476188659668
2020	57.1428565979004
2021	60
2022	57.0754699707031