Year	Number
2004	52.7363166809082
2005	53.9215698242188
2006	50.4901962280273
2007	49.029125213623
2008	47.5728149414063
2009	44.4976081848145
2010	39.7129173278809
2011	38.3886260986328
2012	34.5971565246582
2013	35.0710906982422
2014	28.365385055542
2015	30
2016	26.6666660308838
2017	12.380952835083
2018	10.9523811340332
2019	10
2020	39.523811340332
2021	43.3333320617676
2022	43.3962249755859