| Year | Count |
|---|---|
| 1994 | 7 |
| 1995 | 7 |
| 1996 | 14 |
| 1997 | 24 |
| 1998 | 16 |
| 1999 | 23 |
| 2000 | 6 |
| 2000 | 51 |
| 2001 | 98 |
| 2002 | 163 |
| 2003 | 8 |
| 2003 | 268 |
| 2004 | 5 |
| 2004 | 376 |
| 2005 | 8 |
| 2005 | 459 |
| 2006 | 5 |
| 2006 | 582 |
| 2007 | 5 |
| 2007 | 703 |
| 2008 | 9 |
| 2008 | 817 |
| 2009 | 8 |
| 2009 | 934 |
| 2010 | 8 |
| 2010 | 988 |
| 2011 | 1,078 |
| 2012 | 1,044 |
| 2013 | 5 |
| 2013 | 948 |
| 2014 | 7 |
| 2014 | 907 |
| 2015 | 24 |
| 2015 | 987 |
| 2016 | 1,812 |
| 2017 | 1,546 |
| 2018 | 1,526 |
| 2019 | 1,396 |
| 2020 | 612 |
| 2021 | 578 |
| 2022 | 571 |
| 2023 | 469 |
| 2024 | 463 |