| Year | Count |
|---|---|
| 1993 | 20 |
| 1995 | 24 |
| 1996 | 41 |
| 1997 | 77 |
| 1998 | 129 |
| 1999 | 105 |
| 2000 | 210 |
| 2001 | 440 |
| 2002 | 618 |
| 2003 | 798 |
| 2004 | 917 |
| 2005 | 1,004 |
| 2006 | 1,232 |
| 2007 | 1,691 |
| 2008 | 1,614 |
| 2009 | 2,022 |
| 2010 | 2,243 |
| 2011 | 2,454 |
| 2012 | 2,196 |
| 2013 | 1,771 |
| 2014 | 1,590 |
| 2015 | 1,570 |
| 2016 | 1,406 |
| 2017 | 1,376 |
| 2018 | 1,359 |
| 2019 | 1,093 |
| 2020 | 928 |
| 2021 | 903 |
| 2022 | 897 |
| 2023 | 686 |
| 2024 | 602 |