| Year | Count |
|---|---|
| 1994 | 5 |
| 1995 | 7 |
| 1996 | 16 |
| 1997 | 19 |
| 1998 | 28 |
| 1999 | 33 |
| 2000 | 45 |
| 2001 | 52 |
| 2002 | 51 |
| 2003 | 62 |
| 2004 | 62 |
| 2005 | 66 |
| 2006 | 77 |
| 2007 | 79 |
| 2008 | 74 |
| 2009 | 106 |
| 2010 | 97 |
| 2011 | 113 |
| 2012 | 158 |
| 2013 | 150 |
| 2014 | 156 |
| 2015 | 223 |
| 2016 | 546 |
| 2017 | 604 |
| 2018 | 598 |
| 2019 | 728 |
| 2020 | 353 |
| 2021 | 393 |
| 2022 | 409 |
| 2023 | 432 |
| 2024 | 398 |