Year	Number
2004	52.7363166809082
2005	53.9215698242188
2006	51.470588684082
2007	21.8446598052979
2008	16.990291595459
2009	12.9186601638794
2010	9.09090900421143
2011	8.53080558776855
2012	7.5829381942749
2013	7.10900497436523
2014	4.32692289352417
2015	5.2380952835083
2016	5.7142858505249
2017	6.1904764175415
2018	6.1904764175415
2019	6.66666650772095
2020	7.14285707473755
2021	9.0476188659668
2022	13.6792449951172