Year	Number
1996	4
1998	4
2000	4
2002	6
2003	5
2004	7
2005	8
2006	9
2007	10
2008	10
2009	10
2010	10
2011	10
2012	11
2013	12
2014	10
2015	10
2016	10
2017	10
2018	10
2019	10
2020	9
2021	9
2022	9