| Year | Count |
|---|---|
| 1992 | 6 |
| 1994 | 6 |
| 1995 | 5 |
| 1996 | 10 |
| 1997 | 24 |
| 1998 | 27 |
| 1999 | 40 |
| 2000 | 56 |
| 2001 | 53 |
| 2002 | 78 |
| 2003 | 101 |
| 2004 | 66 |
| 2005 | 161 |
| 2006 | 133 |
| 2007 | 165 |
| 2008 | 104 |
| 2009 | 162 |
| 2010 | 119 |
| 2011 | 98 |
| 2012 | 104 |
| 2013 | 92 |
| 2014 | 105 |
| 2015 | 68 |
| 2016 | 157 |
| 2017 | 159 |
| 2018 | 219 |
| 2019 | 196 |
| 2020 | 205 |
| 2021 | 255 |
| 2022 | 177 |
| 2023 | 210 |
| 2024 | 266 |