Year	Number
2004	10.4477615356445
2005	33.8235282897949
2006	15.6097564697266
2007	15.5339803695679
2008	15.5339803695679
2009	11.4832534790039
2010	14.8325357437134
2011	18.4834117889404
2012	23.222749710083
2013	22.274881362915
2014	13.942307472229
2015	15.7142858505249
2016	17.619047164917
2017	18.0952377319336
2018	17.619047164917
2019	16.6666660308838
2020	26.6666660308838
2021	18.5714282989502
2022	26.8867931365967