Year	Number
1996	4
1998	3
2000	4
2002	7
2003	7
2004	7
2005	7
2006	7
2007	7
2008	8
2009	9
2010	9
2011	9
2012	10
2013	10
2014	10
2015	10
2016	9
2017	8
2018	8
2019	8
2020	7
2021	7
2022	7