| Year | Count |
|---|---|
| 1997 | 8 |
| 1999 | 5 |
| 2001 | 6 |
| 2004 | 5 |
| 2005 | 5 |
| 2006 | 12 |
| 2006 | 5 |
| 2007 | 6 |
| 2007 | 5 |
| 2008 | 13 |
| 2009 | 6 |
| 2010 | 8 |
| 2011 | 5 |
| 2011 | 9 |
| 2012 | 5 |
| 2013 | 6 |
| 2013 | 5 |
| 2014 | 8 |
| 2014 | 7 |
| 2015 | 15 |
| 2015 | 11 |
| 2017 | 29 |
| 2017 | 28 |
| 2018 | 38 |
| 2019 | 10 |
| 2019 | 30 |
| 2020 | 18 |
| 2020 | 11 |
| 2021 | 7 |
| 2021 | 8 |
| 2022 | 10 |
| 2022 | 9 |
| 2023 | 7 |
| 2024 | 12 |
| 2024 | 9 |