Year	Number
1996	5
1998	6
2000	8
2002	10
2003	10
2004	10
2005	11
2006	12
2007	12
2008	12
2009	13
2010	13
2011	12
2012	14
2013	14
2014	12
2015	12
2016	12
2017	12
2018	12
2019	11
2020	11
2021	11
2022	11