Year	Number
2004	44.3349761962891
2005	31.2195129394531
2006	25.8536586761475
2007	19.4174766540527
2008	20.3883495330811
2009	20.5741634368896
2010	18.0952377319336
2011	19.9052124023438
2012	30.3317527770996
2013	28.4360198974609
2014	62.5
2015	60
2016	60.9523811340332
2017	62.8571434020996
2018	60
2019	59.523811340332
2020	63.8095245361328
2021	56.6666679382324
2022	52.3584899902344