| Year | Count |
|---|---|
| 1911 | 9 |
| 1912 | 5 |
| 1915 | 5 |
| 1917 | 5 |
| 1918 | 10 |
| 1921 | 5 |
| 1922 | 10 |
| 1923 | 12 |
| 1924 | 24 |
| 1926 | 12 |
| 1927 | 24 |
| 1928 | 14 |
| 1930 | 10 |
| 1931 | 5 |
| 1932 | 9 |
| 1933 | 6 |
| 1954 | 6 |
| 1955 | 10 |
| 1956 | 6 |
| 1957 | 18 |
| 1958 | 18 |
| 1959 | 20 |
| 1960 | 22 |
| 1961 | 7 |
| 1962 | 6 |
| 1963 | 12 |
| 1964 | 8 |
| 1965 | 6 |
| 1966 | 8 |
| 1967 | 11 |
| 1968 | 5 |
| 1969 | 9 |
| 1970 | 8 |
| 1971 | 6 |
| 1972 | 7 |
| 1975 | 5 |
| 1976 | 12 |
| 1979 | 10 |