Year	Number
1996	32
1998	13.9303483963013
2000	11.4427862167358
2002	31.8407955169678
2003	39.3034820556641
2004	39.4230766296387
2005	31.25
2006	35.0961532592773
2007	38.9423065185547
2008	43.75
2009	40.2843589782715
2010	42.1800956726074
2011	40.8450698852539
2012	37.0892028808594
2013	36.6197166442871
2014	38.4236450195313
2015	37.4384231567383
2016	39.9014778137207
2017	40.3940887451172
2018	38.3495140075684
2019	40.0966186523438
2020	41.5458946228027
2021	44.9275360107422
2022	41.5458946228027