Year	Number
1983	67
1992	26
1999	4
2000	16
2001	13
2002	20
2003	11
2004	17
2005	16
2006	13
2007	13
2008	3
2009	2
2010	2
2011	3
2014	8
2015	1
2016	1
2017	12
2018	31
2019	7
2020	7