| Year | Count |
|---|---|
| 1993 | 12 |
| 1994 | 38 |
| 1995 | 108 |
| 1996 | 152 |
| 1997 | 339 |
| 1998 | 379 |
| 1999 | 411 |
| 2000 | 617 |
| 2001 | 656 |
| 2002 | 676 |
| 2003 | 775 |
| 2004 | 921 |
| 2005 | 937 |
| 2006 | 992 |
| 2007 | 1,195 |
| 2008 | 995 |
| 2009 | 883 |
| 2010 | 737 |
| 2011 | 642 |
| 2012 | 614 |
| 2013 | 488 |
| 2014 | 399 |
| 2015 | 383 |
| 2016 | 265 |
| 2017 | 292 |
| 2018 | 169 |
| 2019 | 113 |
| 2020 | 61 |
| 2021 | 47 |
| 2022 | 75 |
| 2023 | 32 |
| 2024 | 23 |