| Year | Count |
|---|---|
| 1919 | 5 |
| 1924 | 5 |
| 1943 | 6 |
| 1946 | 5 |
| 1973 | 5 |
| 1977 | 8 |
| 1986 | 6 |
| 1991 | 6 |
| 1993 | 5 |
| 1994 | 5 |
| 1995 | 6 |
| 1997 | 7 |
| 1998 | 5 |
| 2000 | 6 |
| 2003 | 5 |
| 2006 | 5 |
| 2008 | 5 |
| 2009 | 10 |
| 2010 | 56 |
| 2011 | 46 |
| 2012 | 41 |
| 2013 | 34 |
| 2014 | 28 |
| 2015 | 15 |
| 2015 | 28 |
| 2016 | 82 |
| 2017 | 15 |
| 2017 | 64 |
| 2018 | 14 |
| 2018 | 64 |
| 2019 | 10 |
| 2019 | 48 |
| 2020 | 14 |
| 2020 | 31 |
| 2021 | 18 |
| 2021 | 25 |
| 2022 | 10 |
| 2022 | 24 |
| 2023 | 16 |
| 2023 | 27 |
| 2024 | 14 |
| 2024 | 20 |