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