Year	Number
1996	3
1998	3
2000	3
2002	3
2003	3
2004	5
2005	8
2006	8
2007	8
2008	8
2009	9
2010	9
2011	9
2012	9
2013	9
2014	9
2015	8
2016	8
2017	8
2018	8
2019	8
2020	7
2021	8
2022	8