| Year | Count |
|---|---|
| 1913 | 7 |
| 1915 | 5 |
| 1916 | 7 |
| 1918 | 7 |
| 1919 | 6 |
| 1920 | 5 |
| 1921 | 5 |
| 1924 | 18 |
| 1925 | 16 |
| 1926 | 12 |
| 1927 | 18 |
| 1932 | 8 |
| 1937 | 6 |
| 1938 | 6 |
| 1945 | 5 |
| 1946 | 6 |
| 1947 | 6 |
| 1948 | 7 |
| 1949 | 7 |
| 1950 | 11 |
| 1952 | 9 |
| 1953 | 5 |
| 1954 | 7 |
| 1955 | 10 |
| 1957 | 10 |
| 1960 | 14 |
| 1961 | 5 |
| 1962 | 5 |
| 1963 | 9 |
| 1964 | 8 |
| 1965 | 5 |
| 1966 | 9 |
| 1967 | 9 |
| 1970 | 6 |
| 1971 | 7 |
| 1977 | 12 |
| 2004 | 5 |