Year	Number
1996	32.7868843078613
1998	30.0546455383301
2000	26.7759571075439
2002	28.1081085205078
2003	33.5135116577148
2004	39.3034820556641
2005	28.4313716888428
2006	31.7073173522949
2007	20.8737869262695
2008	25.2427177429199
2009	27.2727279663086
2010	28.2296657562256
2011	28.4360198974609
2012	20.3791465759277
2013	15.1658763885498
2014	12.0192308425903
2015	11.9047622680664
2016	6.66666650772095
2017	9.0476188659668
2018	8.09523773193359
2019	7.14285707473755
2020	7.61904764175415
2021	8.5714282989502
2022	8.96226406097412