Year	Number
1996	3
1998	3
2000	3
2002	3
2003	4
2004	6
2005	7
2006	9
2007	9
2008	9
2009	10
2010	10
2011	11
2012	11
2013	12
2014	12
2015	13
2016	13
2017	13
2018	13
2019	13
2020	12
2021	12
2022	12