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