| Year | Count |
|---|---|
| 1992 | 5 |
| 1994 | 5 |
| 1995 | 10 |
| 1996 | 25 |
| 1997 | 77 |
| 1998 | 138 |
| 1999 | 156 |
| 2000 | 228 |
| 2001 | 233 |
| 2001 | 24 |
| 2002 | 218 |
| 2002 | 14 |
| 2003 | 238 |
| 2004 | 324 |
| 2004 | 18 |
| 2005 | 294 |
| 2005 | 25 |
| 2006 | 264 |
| 2006 | 30 |
| 2007 | 314 |
| 2007 | 25 |
| 2008 | 254 |
| 2008 | 5 |
| 2009 | 174 |
| 2009 | 10 |
| 2010 | 155 |
| 2010 | 20 |
| 2011 | 106 |
| 2012 | 103 |
| 2012 | 14 |
| 2013 | 66 |
| 2014 | 67 |
| 2015 | 117 |
| 2016 | 111 |
| 2017 | 56 |
| 2018 | 42 |
| 2019 | 36 |
| 2020 | 100 |
| 2021 | 103 |
| 2022 | 82 |
| 2023 | 57 |
| 2024 | 67 |