Year	Number
2000	12
2001	12
2002	13
2003	10
2004	6
2005	12
2006	14
2007	13
2008	17
2009	22
2010	22
2011	14
2012	5
2013	9
2014	16
2015	16
2016	26
2017	23
2018	20
2019	7
2020	12