Year	Number
2004	43.7810935974121
2005	39.2156867980957
2006	39.0243911743164
2007	29.1262130737305
2008	27.6699028015137
2009	23.9234447479248
2010	21.0526313781738
2011	24.1706161499023
2012	24.1706161499023
2013	24.6445503234863
2014	30.2884616851807
2015	39.0476188659668
2016	40.476188659668
2017	50.476188659668
2018	50
2019	50
2020	57.1428565979004
2021	56.1904754638672
2022	58.9622650146484