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