Year	Number
1996	1
1998	1
2000	1
2002	1
2003	1
2004	2
2005	2
2006	3
2007	4
2008	4
2009	4
2010	4
2011	5
2012	4
2013	4
2014	3
2015	4
2016	4
2017	3
2018	3
2019	3
2020	3
2021	2
2022	2