| Year | Count |
|---|---|
| 1944 | 23 |
| 1946 | 16 |
| 1947 | 47 |
| 1948 | 6 |
| 1950 | 37 |
| 1951 | 60 |
| 1952 | 22 |
| 1953 | 18 |
| 1954 | 34 |
| 1955 | 26 |
| 1956 | 28 |
| 1957 | 20 |
| 1958 | 51 |
| 1959 | 46 |
| 1960 | 59 |
| 1961 | 85 |
| 1962 | 41 |
| 1963 | 43 |
| 1964 | 32 |
| 1965 | 89 |
| 1966 | 64 |
| 1967 | 58 |
| 1968 | 41 |
| 1969 | 64 |
| 1970 | 29 |
| 1971 | 24 |
| 1972 | 13 |
| 1973 | 34 |
| 1974 | 6 |
| 1975 | 16 |
| 1980 | 5 |