Year	Number
1996	7
1998	7
2000	8
2002	10
2003	11
2004	12
2005	12
2006	14
2007	15
2008	15
2009	15
2010	16
2011	17
2012	17
2013	16
2014	12
2015	13
2016	13
2017	13
2018	11
2019	11
2020	10
2021	11
2022	11