| Year | Count |
|---|---|
| 1988 | 7 |
| 1993 | 9 |
| 1995 | 46 |
| 1996 | 93 |
| 1997 | 41 |
| 1998 | 41 |
| 1999 | 30 |
| 2000 | 32 |
| 2001 | 34 |
| 2002 | 27 |
| 2003 | 12 |
| 2004 | 35 |
| 2005 | 44 |
| 2006 | 30 |
| 2007 | 30 |
| 2008 | 34 |
| 2009 | 23 |
| 2010 | 25 |
| 2011 | 35 |
| 2012 | 28 |
| 2013 | 29 |
| 2014 | 22 |
| 2015 | 26 |
| 2016 | 99 |
| 2017 | 57 |
| 2018 | 27 |
| 2019 | 54 |
| 2020 | 34 |
| 2021 | 36 |
| 2022 | 54 |
| 2023 | 38 |
| 2024 | 46 |