| Year | Count |
|---|---|
| 1914 | 5 |
| 1915 | 12 |
| 1922 | 14 |
| 1923 | 7 |
| 1924 | 10 |
| 1928 | 6 |
| 1929 | 11 |
| 1930 | 7 |
| 1931 | 5 |
| 1964 | 5 |
| 1965 | 5 |
| 1969 | 5 |
| 1970 | 8 |
| 1972 | 8 |
| 1973 | 5 |
| 1976 | 5 |
| 1979 | 6 |
| 1987 | 5 |
| 1994 | 5 |
| 1997 | 5 |
| 1998 | 5 |
| 1999 | 12 |
| 2001 | 20 |
| 2005 | 13 |
| 2009 | 12 |
| 2010 | 10 |
| 2011 | 10 |
| 2012 | 10 |
| 2013 | 11 |
| 2014 | 18 |
| 2015 | 28 |
| 2017 | 30 |
| 2019 | 42 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 13 |
| 2023 | 25 |
| 2024 | 30 |