Year	Number
1996	7
1998	7
2000	8
2002	9
2003	9
2004	9
2005	9
2006	12
2007	12
2008	12
2009	11
2010	11
2011	11
2012	11
2013	11
2014	9
2015	9
2016	9
2017	9
2018	9
2019	8
2020	7
2021	7
2022	7