| Year | Count |
|---|---|
| 1992 | 5 |
| 1994 | 9 |
| 1995 | 90 |
| 1996 | 233 |
| 1996 | 7 |
| 1997 | 261 |
| 1997 | 10 |
| 1998 | 248 |
| 1999 | 183 |
| 1999 | 5 |
| 2000 | 152 |
| 2001 | 140 |
| 2002 | 153 |
| 2003 | 130 |
| 2004 | 245 |
| 2004 | 12 |
| 2005 | 284 |
| 2006 | 156 |
| 2007 | 143 |
| 2008 | 135 |
| 2009 | 65 |
| 2010 | 34 |
| 2011 | 73 |
| 2012 | 10 |
| 2013 | 20 |
| 2014 | 14 |
| 2015 | 15 |
| 2016 | 14 |
| 2017 | 22 |
| 2018 | 13 |
| 2019 | 19 |
| 2020 | 19 |
| 2021 | 14 |
| 2022 | 20 |
| 2023 | 9 |
| 2024 | 8 |