Year	Number
1996	1
1998	1
2000	1
2002	2
2003	2
2004	3
2005	5
2006	7
2007	7
2008	7
2009	8
2010	8
2011	8
2012	8
2013	9
2014	9
2015	8
2016	8
2017	8
2018	8
2019	8
2020	7
2021	8
2022	8