Year	Number
2000	3
2001	7
2002	6
2003	10
2004	22
2005	11
2006	6
2007	18
2008	3
2009	2
2010	7
2011	0
2012	5
2013	5
2014	6
2015	0
2016	3
2017	0
2018	1
2019	0
2020	7