Year	Number
1996	7
1998	7
2000	8
2002	10
2003	10
2004	12
2005	12
2006	14
2007	16
2008	16
2009	16
2010	15
2011	16
2012	16
2013	16
2014	13
2015	13
2016	13
2017	12
2018	12
2019	11
2020	10
2021	11
2022	11