Year	Number
1996	35.4838714599609
1998	34.2245979309082
2000	45.7446823120117
2002	28.0423278808594
2003	24.8677253723145
2004	27.5862064361572
2005	23.4146347045898
2006	22.4390239715576
2007	19.9029121398926
2008	19.4174766540527
2009	19.1387557983398
2010	17.1428565979004
2011	18.9573459625244
2012	15.1658763885498
2013	12.3222751617432
2014	10.5769233703613
2015	10.4761905670166
2016	11.9047622680664
2017	11.9047622680664
2018	9.0476188659668
2019	9.5238094329834
2020	8.09523773193359
2021	6.1904764175415
2022	6.60377359390259