Year	Number
1996	54.3010749816895
1998	54.5454559326172
2000	54.7872352600098
2002	40.2116394042969
2003	39.1534385681152
2004	34.4827575683594
2005	29.7560977935791
2006	30.2439022064209
2007	27.6699028015137
2008	29.1262130737305
2009	22.4880390167236
2010	20.9523811340332
2011	18.4834117889404
2012	12.3222751617432
2013	9.00473976135254
2014	8.65384578704834
2015	0
2016	0.952380955219269
2017	3.80952382087708
2018	1.42857146263123
2019	1.42857146263123
2020	1.90476191043854
2021	4.2857141494751
2022	2.8301887512207