| Year | Count |
|---|---|
| 1996 | 10 |
| 1998 | 12 |
| 1999 | 49 |
| 2000 | 63 |
| 2001 | 171 |
| 2002 | 214 |
| 2003 | 463 |
| 2004 | 728 |
| 2005 | 928 |
| 2006 | 995 |
| 2007 | 1,090 |
| 2008 | 1,264 |
| 2009 | 1,225 |
| 2010 | 1,153 |
| 2011 | 1,068 |
| 2012 | 918 |
| 2013 | 855 |
| 2014 | 636 |
| 2015 | 706 |
| 2016 | 739 |
| 2017 | 620 |
| 2018 | 472 |
| 2019 | 485 |
| 2020 | 419 |
| 2021 | 450 |
| 2022 | 372 |
| 2023 | 341 |
| 2024 | 374 |