| Year | Count |
|---|---|
| 1998 | 5 |
| 1999 | 36 |
| 2001 | 5 |
| 2002 | 18 |
| 2003 | 10 |
| 2004 | 50 |
| 2005 | 117 |
| 2006 | 52 |
| 2007 | 86 |
| 2008 | 221 |
| 2009 | 176 |
| 2010 | 323 |
| 2011 | 474 |
| 2012 | 653 |
| 2013 | 713 |
| 2014 | 760 |
| 2015 | 1,122 |
| 2016 | 1,303 |
| 2017 | 1,548 |
| 2018 | 1,760 |
| 2019 | 1,803 |
| 2020 | 1,631 |
| 2021 | 1,889 |
| 2022 | 2,051 |
| 2023 | 1,959 |
| 2024 | 1,921 |