| Year | Count |
|---|---|
| 1922 | 5 |
| 1942 | 6 |
| 1943 | 15 |
| 1945 | 5 |
| 1946 | 12 |
| 1948 | 5 |
| 1950 | 26 |
| 1952 | 23 |
| 1953 | 7 |
| 1955 | 11 |
| 1956 | 18 |
| 1957 | 46 |
| 1958 | 110 |
| 1959 | 128 |
| 1960 | 87 |
| 1961 | 91 |
| 1962 | 124 |
| 1963 | 154 |
| 1964 | 99 |
| 1965 | 43 |
| 1966 | 74 |
| 1967 | 18 |
| 1968 | 47 |
| 1969 | 16 |
| 1970 | 30 |
| 1971 | 14 |
| 1972 | 26 |
| 1973 | 5 |
| 1974 | 7 |
| 1975 | 5 |
| 1976 | 10 |
| 1977 | 29 |
| 1978 | 10 |
| 1981 | 6 |
| 1983 | 6 |
| 1985 | 5 |
| 1986 | 5 |
| 1989 | 7 |
| 1999 | 5 |
| 2017 | 5 |