Year	Number of
2000	23
2001	21
2002	20
2003	19
2004	27
2005	13
2006	12
2007	17
2008	17
2009	6
2010	10
2011	10
2012	10
2013	11
2014	11
2015	11
2016	11
2017	11
2018	11
2019	10
2020	14