| Year | Count |
|---|---|
| 1993 | 5 |
| 1994 | 5 |
| 1995 | 6 |
| 1997 | 5 |
| 1998 | 17 |
| 1999 | 16 |
| 2000 | 32 |
| 2001 | 25 |
| 2002 | 30 |
| 2003 | 42 |
| 2004 | 44 |
| 2005 | 32 |
| 2006 | 37 |
| 2007 | 50 |
| 2008 | 41 |
| 2009 | 47 |
| 2010 | 46 |
| 2011 | 41 |
| 2012 | 53 |
| 2013 | 55 |
| 2014 | 54 |
| 2015 | 58 |
| 2016 | 99 |
| 2017 | 129 |
| 2018 | 50 |
| 2019 | 80 |
| 2020 | 88 |
| 2021 | 96 |
| 2022 | 68 |
| 2023 | 62 |
| 2024 | 78 |