Year	Number
1996	4
1998	5
2000	7
2002	8
2003	8
2004	9
2005	12
2006	15
2007	15
2008	15
2009	15
2010	15
2011	15
2012	15
2013	15
2014	14
2015	14
2016	12
2017	12
2018	12
2019	12
2020	12
2021	12
2022	12