Year	Number
1996	3
1998	3
2000	3
2002	3
2003	3
2004	5
2005	8
2006	9
2007	9
2008	9
2009	9
2010	9
2011	9
2012	10
2013	11
2014	11
2015	10
2016	10
2017	10
2018	10
2019	10
2020	9
2021	10
2022	10