Year of reporting	Count
1998	1
1999	1
2000	1
2005	1
2006	1
2007	2
2008	2
2009	6
2010	17
2012	1
2014	1
2015	2
2016	2
2017	4
2018	1
2019	3
2021	3
2023	2

Statistics by the author: Cirák Ján