Year	Number
1996	4
1998	4
2000	5
2002	8
2003	8
2004	10
2005	11
2006	12
2007	14
2008	14
2009	15
2010	15
2011	15
2012	15
2013	16
2014	12
2015	12
2016	12
2017	13
2018	13
2019	12
2020	11
2021	12
2022	13