Year	Number
1996	18.032787322998
1998	22.9508190155029
2000	23.4972686767578
2002	27.5675678253174
2003	27.027027130127
2004	33.8308448791504
2005	33.3333320617676
2006	40
2007	50.970874786377
2008	50.970874786377
2009	48.3253593444824
2010	47.3684196472168
2011	45.971565246582
2012	50.2369651794434
2013	43.6018943786621
2014	47.5961532592773
2015	35.7142868041992
2016	36.1904754638672
2017	33.8095245361328
2018	38.5714302062988
2019	37.6190490722656
2020	43.3333320617676
2021	38.5714302062988
2022	34.9056587219238