Year	Number
1996	29.7872333526611
1998	22.340425491333
2000	26.9841270446777
2002	18.518518447876
2003	20.1005020141602
2004	19.9029121398926
2005	15.5339803695679
2006	24.1545886993408
2007	30.4347820281982
2008	35.0961532592773
2009	34.5971565246582
2010	27.014217376709
2011	27.488151550293
2012	30.8056869506836
2013	33.1753540039063
2014	56.6666679382324
2015	35.7142868041992
2016	32.8571434020996
2017	36.6666679382324
2018	38.6792449951172
2019	47.6415100097656
2020	50.9433975219727
2021	49.5283012390137
2022	50.9433975219727