Year	Number
1996	4
1998	4
2000	4
2002	5
2003	7
2004	8
2005	8
2006	11
2007	11
2008	12
2009	12
2010	12
2011	13
2012	14
2013	14
2014	13
2015	12
2016	11
2017	12
2018	12
2019	12
2020	10
2021	11
2022	10