Year of reporting	Count
2000	2
2001	4
2002	5
2003	4
2004	3
2005	1
2006	3
2007	4
2008	7
2009	5
2010	6
2011	6
2012	6
2013	7
2014	7
2015	5
2016	11
2017	8
2018	5
2019	4
2020	1

Statistics by the author: Sabo Peter