| Year | Count |
|---|---|
| 1998 | 9 |
| 1999 | 35 |
| 2000 | 95 |
| 2001 | 297 |
| 2002 | 453 |
| 2003 | 1,114 |
| 2004 | 5 |
| 2004 | 1,487 |
| 2005 | 1,087 |
| 2006 | 1,371 |
| 2007 | 1,240 |
| 2008 | 1,307 |
| 2009 | 1,378 |
| 2010 | 1,337 |
| 2011 | 1,555 |
| 2012 | 1,729 |
| 2013 | 1,914 |
| 2014 | 1,783 |
| 2015 | 1,896 |
| 2016 | 1,897 |
| 2017 | 2,081 |
| 2018 | 1,825 |
| 2019 | 1,674 |
| 2020 | 1,257 |
| 2021 | 1,336 |
| 2022 | 1,229 |
| 2023 | 989 |
| 2024 | 926 |