| Year | Count |
|---|---|
| 1995 | 6 |
| 1996 | 24 |
| 1997 | 64 |
| 1998 | 82 |
| 1999 | 92 |
| 2000 | 131 |
| 2001 | 219 |
| 2002 | 171 |
| 2003 | 243 |
| 2004 | 346 |
| 2005 | 406 |
| 2006 | 408 |
| 2007 | 572 |
| 2008 | 610 |
| 2009 | 619 |
| 2010 | 545 |
| 2011 | 505 |
| 2012 | 509 |
| 2013 | 433 |
| 2014 | 439 |
| 2015 | 517 |
| 2016 | 378 |
| 2017 | 354 |
| 2018 | 267 |
| 2019 | 276 |
| 2020 | 282 |
| 2021 | 189 |
| 2022 | 141 |
| 2023 | 163 |
| 2024 | 167 |