| Year | Count |
|---|---|
| 1983 | 9 |
| 1984 | 9 |
| 1989 | 9 |
| 1991 | 5 |
| 1996 | 5 |
| 1997 | 6 |
| 1999 | 6 |
| 2000 | 9 |
| 2001 | 5 |
| 2002 | 6 |
| 2004 | 7 |
| 2006 | 8 |
| 2007 | 5 |
| 2009 | 5 |
| 2010 | 10 |
| 2011 | 11 |
| 2012 | 9 |
| 2013 | 12 |
| 2014 | 5 |
| 2014 | 17 |
| 2015 | 15 |
| 2015 | 27 |
| 2016 | 27 |
| 2016 | 82 |
| 2017 | 45 |
| 2017 | 70 |
| 2018 | 22 |
| 2018 | 82 |
| 2019 | 26 |
| 2019 | 68 |
| 2020 | 28 |
| 2020 | 54 |
| 2021 | 30 |
| 2021 | 42 |
| 2022 | 26 |
| 2022 | 42 |
| 2023 | 28 |
| 2023 | 34 |
| 2024 | 18 |
| 2024 | 28 |