| Year | Count |
|---|---|
| 1998 | 10 |
| 1999 | 34 |
| 2000 | 16 |
| 2001 | 41 |
| 2002 | 54 |
| 2003 | 53 |
| 2004 | 47 |
| 2005 | 81 |
| 2006 | 91 |
| 2007 | 87 |
| 2008 | 199 |
| 2009 | 186 |
| 2010 | 179 |
| 2011 | 244 |
| 2012 | 343 |
| 2013 | 259 |
| 2014 | 418 |
| 2015 | 610 |
| 2016 | 685 |
| 2017 | 765 |
| 2018 | 635 |
| 2019 | 844 |
| 2020 | 1,017 |
| 2021 | 1,315 |
| 2022 | 1,387 |
| 2023 | 1,524 |
| 2024 | 1,422 |