Year	Number
1996	3
1998	3
2000	3
2002	4
2003	4
2004	5
2005	6
2006	8
2007	8
2008	8
2009	8
2010	8
2011	9
2012	8
2013	8
2014	8
2015	7
2016	8
2017	8
2018	8
2019	8
2020	8
2021	7
2022	7