| Year | Count |
|---|---|
| 1998 | 10 |
| 1999 | 6 |
| 2000 | 7 |
| 2001 | 17 |
| 2002 | 34 |
| 2003 | 7 |
| 2003 | 103 |
| 2004 | 82 |
| 2005 | 103 |
| 2006 | 155 |
| 2007 | 6 |
| 2007 | 209 |
| 2008 | 6 |
| 2008 | 243 |
| 2009 | 242 |
| 2010 | 6 |
| 2010 | 288 |
| 2011 | 5 |
| 2011 | 368 |
| 2012 | 332 |
| 2013 | 290 |
| 2014 | 302 |
| 2015 | 274 |
| 2016 | 478 |
| 2017 | 394 |
| 2018 | 456 |
| 2019 | 418 |
| 2020 | 175 |
| 2021 | 180 |
| 2022 | 148 |
| 2023 | 135 |
| 2024 | 126 |