| Year | Count |
|---|---|
| 1985 | 12 |
| 1987 | 5 |
| 1989 | 5 |
| 1991 | 10 |
| 1996 | 6 |
| 1997 | 6 |
| 1998 | 39 |
| 1999 | 47 |
| 2000 | 30 |
| 2001 | 45 |
| 2002 | 13 |
| 2003 | 44 |
| 2004 | 13 |
| 2005 | 31 |
| 2006 | 28 |
| 2007 | 23 |
| 2008 | 21 |
| 2009 | 7 |
| 2010 | 34 |
| 2011 | 10 |
| 2012 | 28 |
| 2013 | 16 |
| 2014 | 16 |
| 2015 | 27 |
| 2016 | 41 |
| 2017 | 5 |
| 2018 | 12 |
| 2019 | 17 |
| 2020 | 15 |
| 2021 | 5 |
| 2024 | 10 |