Year	Number of
2000	23
2001	28
2002	24
2003	30
2004	13
2005	19
2006	19
2007	30
2008	35
2009	25
2010	21
2011	14
2012	11
2013	9
2014	22
2015	11
2016	7
2017	7
2018	6
2019	15
2020	14