Year	Number
1996	5
1998	5
2000	6
2002	8
2003	8
2004	9
2005	10
2006	12
2007	12
2008	12
2009	12
2010	13
2011	14
2012	14
2013	15
2014	12
2015	12
2016	12
2017	12
2018	12
2019	12
2020	11
2021	13
2022	13