| Year | Count |
|---|---|
| 1992 | 5 |
| 1993 | 5 |
| 1994 | 6 |
| 1995 | 9 |
| 1996 | 23 |
| 1997 | 5 |
| 1998 | 27 |
| 1999 | 33 |
| 2000 | 33 |
| 2001 | 52 |
| 2002 | 44 |
| 2003 | 74 |
| 2004 | 64 |
| 2005 | 71 |
| 2006 | 95 |
| 2007 | 72 |
| 2008 | 144 |
| 2009 | 158 |
| 2010 | 198 |
| 2011 | 93 |
| 2012 | 174 |
| 2013 | 218 |
| 2014 | 247 |
| 2015 | 226 |
| 2016 | 215 |
| 2017 | 215 |
| 2018 | 130 |
| 2019 | 194 |
| 2020 | 193 |
| 2021 | 290 |
| 2022 | 259 |
| 2023 | 323 |
| 2024 | 425 |