Year	Number
1996	7.53768825531006
1998	8.5
2000	2.98507452011108
2002	6.46766185760498
2003	5.47263669967651
2004	5.76923084259033
2005	13.3971290588379
2006	18.1818180084229
2007	12.9186601638794
2008	15.384614944458
2009	11.3744077682495
2010	10.4265403747559
2011	12.2065725326538
2012	13.1455402374268
2013	14.0845069885254
2014	14.9038457870483
2015	10
2016	6.66666650772095
2017	6.66666650772095
2018	5.7142858505249
2019	5.7142858505249
2020	6.66666650772095
2021	8.09523773193359
2022	9.90566062927246