Year	Number
1996	8
1998	7
2000	9
2002	10
2003	10
2004	12
2005	12
2006	13
2007	14
2008	14
2009	14
2010	13
2011	12
2012	13
2013	13
2014	13
2015	13
2016	12
2017	12
2018	12
2019	12
2020	11
2021	11
2022	11