Year	Number
1996	5.85106372833252
1998	13.8297872543335
2000	11.640212059021
2002	10.0529098510742
2003	6.03015089035034
2004	19.9029121398926
2005	21.8446598052979
2006	22.2222213745117
2007	21.2560386657715
2008	18.75
2009	25.5924167633057
2010	44.5497627258301
2011	46.445499420166
2012	40.2843589782715
2013	42.6540298461914
2014	36.1904754638672
2015	28.0952377319336
2016	43.3333320617676
2017	46.1904754638672
2018	52.8301887512207
2019	47.6415100097656
2020	48.113208770752
2021	50
2022	49.5283012390137