Year	Number
1996	3
1998	5
2000	7
2002	7
2003	8
2004	9
2005	9
2006	11
2007	12
2008	13
2009	13
2010	13
2011	12
2012	12
2013	12
2014	12
2015	12
2016	11
2017	11
2018	11
2019	11
2020	11
2021	12
2022	12