Year	Number
1996	4
1998	4
2000	4
2002	4
2003	6
2004	8
2005	8
2006	10
2007	9
2008	10
2009	11
2010	12
2011	12
2012	11
2013	12
2014	10
2015	8
2016	8
2017	8
2018	8
2019	10
2020	9
2021	10
2022	10