Year	Number
1996	4
1998	4
2000	5
2002	7
2003	7
2004	8
2005	9
2006	12
2007	12
2008	12
2009	12
2010	11
2011	13
2012	13
2013	11
2014	10
2015	10
2016	10
2017	10
2018	10
2019	10
2020	7
2021	7
2022	8