Year of reporting	Count
1988	1
1989	2
1991	1
1993	3
1994	2
1995	1
1996	2
1997	1
1998	4
1999	1
2000	2
2001	2
2003	2
2004	2
2005	3
2007	2
2009	3
2010	1
2013	1
2015	1
2018	1

Statistics by the author: Monoszová Gabriela