Year	Number
1996	3
1998	3
2000	3
2002	3
2003	5
2004	7
2005	8
2006	10
2007	10
2008	11
2009	12
2010	12
2011	13
2012	16
2013	16
2014	15
2015	15
2016	14
2017	14
2018	14
2019	13
2020	13
2021	13
2022	13