Statistics by the author: Holec Stanislav
| Year of reporting | Count |
|---|---|
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 4 |
| 1996 | 4 |
| 1997 | 4 |
| 1998 | 13 |
| 1999 | 11 |
| 2000 | 3 |
| 2001 | 6 |
| 2002 | 7 |
| 2003 | 7 |
| 2004 | 7 |
| 2005 | 7 |
| 2006 | 6 |
| 2007 | 3 |
| 2008 | 1 |
| 2009 | 9 |
| 2010 | 1 |
| 2011 | 9 |
| 2012 | 2 |
| 2013 | 2 |
| 2015 | 2 |
| 2016 | 7 |
| 2017 | 6 |
| 2019 | 3 |
| 2020 | 3 |
| 2022 | 1 |