| Year | Count |
|---|---|
| 1926 | 5 |
| 1928 | 5 |
| 1943 | 5 |
| 1944 | 5 |
| 1945 | 9 |
| 1947 | 10 |
| 1954 | 9 |
| 1961 | 6 |
| 1963 | 12 |
| 1964 | 16 |
| 1984 | 5 |
| 1991 | 5 |
| 1994 | 5 |
| 1995 | 6 |
| 2000 | 21 |
| 2001 | 10 |
| 2003 | 5 |
| 2004 | 5 |
| 2005 | 15 |
| 2006 | 19 |
| 2007 | 17 |
| 2008 | 17 |
| 2009 | 14 |
| 2010 | 15 |
| 2011 | 8 |
| 2014 | 6 |
| 2016 | 19 |
| 2017 | 6 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 10 |
| 2021 | 17 |
| 2022 | 13 |
| 2023 | 5 |
| 2024 | 20 |