| Year | Count |
|---|---|
| 1991 | 7 |
| 1992 | 6 |
| 1993 | 12 |
| 1994 | 56 |
| 1995 | 45 |
| 1996 | 95 |
| 1997 | 187 |
| 1998 | 180 |
| 1999 | 178 |
| 2000 | 182 |
| 2001 | 180 |
| 2002 | 144 |
| 2003 | 185 |
| 2004 | 196 |
| 2005 | 219 |
| 2006 | 269 |
| 2007 | 258 |
| 2008 | 274 |
| 2009 | 181 |
| 2010 | 229 |
| 2011 | 197 |
| 2011 | 10 |
| 2012 | 225 |
| 2013 | 259 |
| 2014 | 260 |
| 2015 | 234 |
| 2016 | 183 |
| 2017 | 163 |
| 2018 | 160 |
| 2019 | 265 |
| 2020 | 240 |
| 2021 | 233 |
| 2022 | 265 |
| 2022 | 10 |
| 2023 | 213 |
| 2024 | 163 |
| 2024 | 7 |