| Year | Count |
|---|---|
| 1984 | 7 |
| 1995 | 10 |
| 1997 | 45 |
| 1998 | 38 |
| 1999 | 67 |
| 2000 | 128 |
| 2001 | 273 |
| 2002 | 287 |
| 2003 | 260 |
| 2004 | 284 |
| 2005 | 368 |
| 2006 | 291 |
| 2007 | 369 |
| 2008 | 401 |
| 2009 | 340 |
| 2010 | 356 |
| 2011 | 324 |
| 2012 | 324 |
| 2013 | 239 |
| 2014 | 201 |
| 2015 | 300 |
| 2016 | 239 |
| 2017 | 244 |
| 2018 | 227 |
| 2019 | 204 |
| 2020 | 195 |
| 2021 | 243 |
| 2022 | 300 |
| 2023 | 355 |
| 2024 | 282 |