Year	Number
1996	42.0212783813477
1998	35.1063842773438
2000	42.8571434020996
2002	62.962963104248
2003	38.6934661865234
2004	41.262134552002
2005	38.3495140075684
2006	31.4009666442871
2007	26.0869560241699
2008	35.5769233703613
2009	38.3886260986328
2010	32.2274894714355
2011	36.0189590454102
2012	36.9668235778809
2013	36.0189590454102
2014	29.0476188659668
2015	27.619047164917
2016	34.761905670166
2017	31.9047622680664
2018	38.2075462341309
2019	33.9622650146484
2020	25
2021	23.5849056243896
2022	24.5283012390137