| Year | Count |
|---|---|
| 1993 | 59 |
| 1994 | 35 |
| 1996 | 12 |
| 1998 | 38 |
| 1999 | 35 |
| 2000 | 23 |
| 2001 | 268 |
| 2002 | 236 |
| 2003 | 146 |
| 2004 | 94 |
| 2005 | 86 |
| 2006 | 101 |
| 2007 | 153 |
| 2008 | 161 |
| 2009 | 268 |
| 2010 | 266 |
| 2011 | 300 |
| 2012 | 573 |
| 2013 | 337 |
| 2014 | 353 |
| 2015 | 469 |
| 2016 | 557 |
| 2017 | 445 |
| 2018 | 340 |
| 2019 | 470 |
| 2020 | 316 |
| 2021 | 433 |
| 2022 | 354 |
| 2023 | 232 |
| 2024 | 262 |