| Year | Count |
|---|---|
| 1919 | 5 |
| 1924 | 10 |
| 1931 | 6 |
| 1934 | 9 |
| 1935 | 8 |
| 1936 | 11 |
| 1937 | 10 |
| 1938 | 8 |
| 1939 | 12 |
| 1940 | 6 |
| 1941 | 14 |
| 1942 | 18 |
| 1943 | 21 |
| 1944 | 12 |
| 1945 | 15 |
| 1946 | 15 |
| 1947 | 18 |
| 1948 | 16 |
| 1949 | 12 |
| 1950 | 17 |
| 1951 | 16 |
| 1952 | 12 |
| 1953 | 12 |
| 1954 | 8 |
| 1955 | 16 |
| 1956 | 15 |
| 1957 | 26 |
| 1958 | 22 |
| 1959 | 14 |
| 1960 | 26 |
| 1961 | 7 |
| 1962 | 7 |
| 1963 | 11 |
| 1964 | 9 |
| 1966 | 6 |
| 1972 | 5 |
| 1973 | 5 |
| 1991 | 5 |
| 1999 | 5 |
| 2012 | 6 |
| 2014 | 6 |
| 2018 | 14 |
| 2021 | 6 |