Year	Number
1996	4
1998	4
2000	5
2002	7
2003	7
2004	8
2005	11
2006	15
2007	15
2008	15
2009	14
2010	14
2011	15
2012	15
2013	16
2014	12
2015	13
2016	13
2017	13
2018	13
2019	12
2020	11
2021	12
2022	12