Year	Number
1996	3
1998	3
2000	3
2002	3
2003	4
2004	7
2005	8
2006	8
2007	9
2008	9
2009	11
2010	12
2011	12
2012	12
2013	13
2014	12
2015	12
2016	11
2017	11
2018	12
2019	12
2020	11
2021	11
2022	12