Year	Number
1996	43.7158470153809
1998	51.3661193847656
2000	53.0054626464844
2002	41.0810813903809
2003	25.9459457397461
2004	22.8855724334717
2005	12.7450981140137
2006	10.2439022064209
2007	7.28155326843262
2008	8.25242710113525
2009	12.4401912689209
2010	10.0478467941284
2011	14.6919431686401
2012	10.9004735946655
2013	13.2701425552368
2014	11.057692527771
2015	10.4761905670166
2016	8.09523773193359
2017	10
2018	8.5714282989502
2019	9.0476188659668
2020	11.4285717010498
2021	12.380952835083
2022	12.2641506195068