| Year | Count |
|---|---|
| 1996 | 11 |
| 1997 | 19 |
| 1998 | 19 |
| 1999 | 31 |
| 2000 | 42 |
| 2001 | 54 |
| 2002 | 68 |
| 2003 | 42 |
| 2004 | 68 |
| 2005 | 101 |
| 2006 | 229 |
| 2007 | 171 |
| 2008 | 177 |
| 2009 | 151 |
| 2010 | 164 |
| 2011 | 138 |
| 2012 | 94 |
| 2013 | 100 |
| 2014 | 90 |
| 2015 | 86 |
| 2016 | 249 |
| 2017 | 285 |
| 2018 | 252 |
| 2019 | 154 |
| 2020 | 126 |
| 2021 | 106 |
| 2022 | 124 |
| 2023 | 98 |
| 2024 | 76 |