| Year | Count |
|---|---|
| 1924 | 7 |
| 1930 | 14 |
| 1931 | 18 |
| 1932 | 15 |
| 1933 | 20 |
| 1934 | 6 |
| 1935 | 27 |
| 1936 | 7 |
| 1938 | 19 |
| 1939 | 7 |
| 1940 | 17 |
| 1941 | 14 |
| 1943 | 20 |
| 1950 | 19 |
| 1951 | 19 |
| 1952 | 13 |
| 1953 | 9 |
| 1954 | 20 |
| 1955 | 13 |
| 1956 | 19 |
| 1957 | 15 |
| 1958 | 11 |
| 1959 | 11 |
| 1960 | 18 |
| 1961 | 10 |
| 1967 | 7 |
| 1968 | 11 |
| 1969 | 8 |
| 1970 | 12 |
| 1971 | 9 |
| 1972 | 9 |
| 1973 | 9 |
| 1975 | 7 |
| 1976 | 5 |
| 1977 | 7 |
| 1980 | 9 |
| 1981 | 5 |
| 1982 | 5 |
| 1986 | 14 |
| 1987 | 14 |
| 2016 | 5 |