| Year | Count |
|---|---|
| 1992 | 5 |
| 1993 | 5 |
| 1995 | 5 |
| 1996 | 18 |
| 1997 | 11 |
| 1998 | 5 |
| 1999 | 5 |
| 2000 | 9 |
| 2001 | 20 |
| 2002 | 30 |
| 2003 | 27 |
| 2004 | 48 |
| 2005 | 69 |
| 2006 | 33 |
| 2007 | 37 |
| 2008 | 81 |
| 2009 | 65 |
| 2010 | 88 |
| 2011 | 99 |
| 2012 | 87 |
| 2013 | 172 |
| 2014 | 169 |
| 2015 | 148 |
| 2016 | 214 |
| 2017 | 190 |
| 2018 | 156 |
| 2019 | 179 |
| 2020 | 278 |
| 2021 | 233 |
| 2022 | 368 |
| 2023 | 282 |
| 2024 | 250 |