Year	Number
1996	50.2732238769531
1998	38.7978134155273
2000	36.0655746459961
2002	42.7027015686035
2003	37.2972984313965
2004	34.825870513916
2005	35.294116973877
2006	29.7560977935791
2007	33.980583190918
2008	34.9514579772949
2009	33.9712905883789
2010	32.0574150085449
2011	29.8578205108643
2012	29.8578205108643
2013	31.7535552978516
2014	23.0769233703613
2015	20.9523811340332
2016	16.6666660308838
2017	16.6666660308838
2018	15.7142858505249
2019	16.1904754638672
2020	20.9523811340332
2021	25.238094329834
2022	25