| Year | Count |
|---|---|
| 1998 | 7 |
| 1998 | 12 |
| 1999 | 15 |
| 1999 | 15 |
| 2000 | 18 |
| 2000 | 20 |
| 2001 | 8 |
| 2001 | 7 |
| 2002 | 10 |
| 2002 | 22 |
| 2003 | 29 |
| 2003 | 16 |
| 2004 | 11 |
| 2004 | 25 |
| 2005 | 24 |
| 2005 | 22 |
| 2006 | 22 |
| 2006 | 17 |
| 2007 | 22 |
| 2007 | 19 |
| 2008 | 39 |
| 2008 | 45 |
| 2009 | 34 |
| 2009 | 34 |
| 2010 | 24 |
| 2010 | 43 |
| 2011 | 37 |
| 2011 | 35 |
| 2012 | 32 |
| 2012 | 45 |
| 2013 | 37 |
| 2013 | 39 |
| 2014 | 35 |
| 2014 | 52 |
| 2015 | 37 |
| 2015 | 40 |
| 2016 | 67 |
| 2016 | 91 |
| 2017 | 91 |
| 2017 | 74 |
| 2018 | 27 |
| 2018 | 70 |
| 2019 | 61 |
| 2019 | 82 |
| 2020 | 35 |
| 2020 | 37 |
| 2021 | 58 |
| 2021 | 31 |
| 2022 | 38 |
| 2022 | 33 |
| 2023 | 80 |
| 2023 | 25 |
| 2024 | 49 |
| 2024 | 38 |