Year of reporting	Count
1997	2
1998	4
1999	3
2000	3
2001	7
2003	4
2004	3
2005	8
2006	2
2007	2
2008	3
2009	3
2010	3
2011	2
2012	4
2013	6
2014	7
2015	5
2016	8
2017	5
2018	4
2019	7
2020	3
2021	5
2022	1

Statistics by the author: Horváthová Dana