| Year | Count |
|---|---|
| 1922 | 10 |
| 1923 | 10 |
| 1924 | 12 |
| 1927 | 10 |
| 1945 | 5 |
| 1946 | 11 |
| 1947 | 11 |
| 1948 | 6 |
| 1949 | 9 |
| 1951 | 11 |
| 1953 | 5 |
| 1956 | 5 |
| 1957 | 14 |
| 1958 | 12 |
| 1961 | 18 |
| 1963 | 8 |
| 1964 | 5 |
| 1967 | 6 |
| 1970 | 5 |
| 1973 | 5 |
| 2002 | 7 |
| 2004 | 5 |
| 2008 | 5 |
| 2010 | 5 |
| 2011 | 8 |
| 2012 | 11 |
| 2013 | 6 |
| 2014 | 5 |
| 2015 | 24 |
| 2016 | 33 |
| 2017 | 51 |
| 2018 | 12 |
| 2019 | 38 |
| 2020 | 24 |
| 2021 | 24 |
| 2022 | 16 |
| 2023 | 32 |
| 2024 | 32 |