Year	Number
1996	4
1998	4
2000	4
2002	5
2003	6
2004	9
2005	10
2006	12
2007	12
2008	12
2009	12
2010	11
2011	12
2012	12
2013	12
2014	11
2015	12
2016	12
2017	12
2018	12
2019	13
2020	12
2021	11
2022	10