Year	Number
1996	18.0904521942139
1998	28
2000	36.3184089660645
2002	34.3283576965332
2003	27.3631839752197
2004	21.634614944458
2005	29.6650714874268
2006	14.3540668487549
2007	15.7894735336304
2008	20.6730766296387
2009	26.0663509368896
2010	28.4360198974609
2011	30.046947479248
2012	30.046947479248
2013	24.4131450653076
2014	25
2015	21.4285717010498
2016	17.619047164917
2017	14.7619047164917
2018	16.6666660308838
2019	14.7619047164917
2020	18.5714282989502
2021	16.6666660308838
2022	13.2075471878052