| Year | Count |
|---|---|
| 1995 | 6 |
| 1996 | 29 |
| 1997 | 22 |
| 1998 | 22 |
| 1999 | 23 |
| 2000 | 60 |
| 2001 | 60 |
| 2002 | 26 |
| 2003 | 50 |
| 2004 | 68 |
| 2005 | 33 |
| 2006 | 79 |
| 2007 | 90 |
| 2008 | 137 |
| 2009 | 126 |
| 2010 | 141 |
| 2011 | 111 |
| 2012 | 190 |
| 2013 | 141 |
| 2014 | 135 |
| 2015 | 131 |
| 2016 | 141 |
| 2017 | 129 |
| 2018 | 116 |
| 2019 | 102 |
| 2020 | 73 |
| 2021 | 60 |
| 2022 | 60 |
| 2023 | 34 |
| 2024 | 24 |