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