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

Statistics by the author: Mandzák Peter