Year	Number
1996	1
1998	1
2000	1
2002	1
2003	2
2004	2
2005	2
2006	2
2007	2
2008	2
2009	4
2010	4
2011	3
2012	3
2013	3
2014	3
2015	3
2016	3
2017	3
2018	3
2019	4
2020	4
2021	4
2022	4