Year	Number of
2000	29
2001	29
2002	30
2003	31
2004	31
2005	32
2006	34
2007	35
2008	37
2009	26
2010	28
2011	27
2012	16
2013	14
2014	11
2015	8
2016	9
2017	8
2018	10
2019	9
2020	9