Year	Number
1996	7
1998	7
2000	8
2002	8
2003	10
2004	12
2005	12
2006	13
2007	13
2008	13
2009	14
2010	14
2011	14
2012	15
2013	15
2014	13
2015	13
2016	12
2017	12
2018	12
2019	12
2020	11
2021	11
2022	11