| Year | Count |
|---|---|
| 1997 | 42 |
| 1998 | 117 |
| 1999 | 105 |
| 2000 | 138 |
| 2001 | 145 |
| 2002 | 104 |
| 2003 | 175 |
| 2004 | 307 |
| 2005 | 346 |
| 2006 | 442 |
| 2007 | 630 |
| 2008 | 674 |
| 2009 | 659 |
| 2010 | 659 |
| 2011 | 739 |
| 2012 | 783 |
| 2013 | 628 |
| 2014 | 606 |
| 2015 | 722 |
| 2016 | 848 |
| 2017 | 787 |
| 2018 | 760 |
| 2019 | 662 |
| 2020 | 724 |
| 2021 | 620 |
| 2022 | 810 |
| 2023 | 910 |
| 2024 | 773 |