| Year | Count |
|---|---|
| 1992 | 20 |
| 1993 | 78 |
| 1994 | 60 |
| 1995 | 5 |
| 1995 | 56 |
| 1996 | 5 |
| 1996 | 65 |
| 1997 | 39 |
| 1998 | 63 |
| 1999 | 123 |
| 2000 | 9 |
| 2000 | 188 |
| 2001 | 196 |
| 2002 | 152 |
| 2003 | 10 |
| 2003 | 145 |
| 2004 | 128 |
| 2005 | 5 |
| 2005 | 120 |
| 2006 | 99 |
| 2007 | 63 |
| 2008 | 50 |
| 2009 | 44 |
| 2010 | 30 |
| 2011 | 37 |
| 2012 | 38 |
| 2013 | 35 |
| 2014 | 27 |
| 2015 | 22 |
| 2016 | 30 |
| 2017 | 26 |
| 2018 | 40 |
| 2019 | 58 |
| 2020 | 22 |
| 2021 | 23 |
| 2022 | 33 |
| 2023 | 36 |
| 2024 | 49 |