| Year | Count |
|---|---|
| 1994 | 11 |
| 1995 | 6 |
| 1997 | 19 |
| 1998 | 14 |
| 1999 | 48 |
| 2000 | 22 |
| 2001 | 34 |
| 2002 | 5 |
| 2003 | 32 |
| 2004 | 21 |
| 2005 | 116 |
| 2006 | 117 |
| 2007 | 117 |
| 2008 | 145 |
| 2009 | 88 |
| 2010 | 150 |
| 2011 | 142 |
| 2012 | 155 |
| 2013 | 209 |
| 2014 | 151 |
| 2015 | 155 |
| 2016 | 103 |
| 2017 | 45 |
| 2018 | 57 |
| 2019 | 40 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 5 |