| Year | Count |
|---|---|
| 1994 | 7 |
| 1996 | 8 |
| 1997 | 11 |
| 1998 | 7 |
| 1999 | 16 |
| 2000 | 10 |
| 2001 | 21 |
| 2002 | 23 |
| 2003 | 17 |
| 2004 | 17 |
| 2005 | 17 |
| 2006 | 34 |
| 2007 | 37 |
| 2008 | 30 |
| 2009 | 32 |
| 2010 | 39 |
| 2011 | 83 |
| 2012 | 59 |
| 2013 | 76 |
| 2014 | 81 |
| 2015 | 95 |
| 2016 | 351 |
| 2017 | 378 |
| 2018 | 414 |
| 2019 | 282 |
| 2020 | 348 |
| 2021 | 312 |
| 2022 | 388 |
| 2023 | 326 |
| 2024 | 332 |