| Year | Count |
|---|---|
| 1992 | 5 |
| 1993 | 10 |
| 1995 | 47 |
| 1996 | 66 |
| 1997 | 51 |
| 1998 | 91 |
| 1999 | 84 |
| 2000 | 121 |
| 2001 | 138 |
| 2002 | 83 |
| 2003 | 160 |
| 2004 | 170 |
| 2005 | 203 |
| 2006 | 107 |
| 2007 | 133 |
| 2008 | 109 |
| 2009 | 51 |
| 2010 | 120 |
| 2011 | 107 |
| 2012 | 93 |
| 2013 | 106 |
| 2014 | 89 |
| 2015 | 125 |
| 2016 | 89 |
| 2017 | 118 |
| 2018 | 115 |
| 2019 | 63 |
| 2020 | 85 |
| 2021 | 44 |
| 2022 | 48 |
| 2023 | 60 |
| 2024 | 91 |