| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1966 | 32 | 5 | 5 | 5 | 4 | 2 | 2 | 4 | 4 | 1 | |||
| 1965 | 19 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 4 | 2 |
| 1964 | 16 | 1 | 1 | 1 | 4 | 2 | 4 | 1 | 1 | 1 | |||
| 1963 | 7 | 1 | 3 | 2 | 1 | ||||||||
| 1962 | 9 | 1 | 1 | 1 | 1 | 3 | 2 | ||||||
| 1961 | 24 | 3 | 3 | 3 | 2 | 2 | 2 | 1 | 2 | 2 | 4 | ||
| 1960 | 29 | 3 | 2 | 4 | 4 | 2 | 1 | 8 | 2 | 3 | |||
| 1959 | 45 | 6 | 4 | 3 | 1 | 2 | 5 | 8 | 7 | 6 | 3 | ||
| 1958 | 34 | 2 | 1 | 3 | 1 | 3 | 2 | 2 | 6 | 4 | 4 | 3 | 3 |
| 1957 | 41 | 2 | 7 | 8 | 3 | 1 | 1 | 1 | 7 | 6 | 2 | 3 | |
| 1956 | 45 | 3 | 5 | 3 | 2 | 1 | 4 | 7 | 4 | 5 | 8 | 3 | |
| 1955 | 50 | 4 | 3 | 7 | 7 | 4 | 7 | 5 | 7 | 3 | 3 | ||
| 1954 | 67 | 5 | 7 | 6 | 4 | 11 | 7 | 6 | 6 | 7 | 3 | 5 | |
| 1953 | 53 | 7 | 2 | 2 | 4 | 6 | 4 | 4 | 6 | 1 | 8 | 5 | 4 |
| 1952 | 51 | 7 | 9 | 8 | 8 | 3 | 4 | 5 | 2 | 4 | 1 | ||
| 1951 | 28 | 2 | 2 | 2 | 2 | 1 | 6 | 2 | 1 | 4 | 4 | 2 | |
| 1950 | 20 | 6 | 4 | 2 | 2 | 3 | 3 | ||||||
| 1949 | 47 | 5 | 6 | 5 | 5 | 7 | 3 | 4 | 4 | 3 | 1 | 1 | 3 |
| 1948 | 98 | 5 | 6 | 5 | 8 | 7 | 9 | 9 | 4 | 5 | 9 | 13 | 18 |
| 1947 | 45 | 3 | 5 | 1 | 7 | 6 | 3 | 4 | 3 | 1 | 8 | 4 | |
| 1946 | 50 | 3 | 3 | 4 | 5 | 4 | 2 | 3 | 5 | 7 | 8 | 6 | |
| 1945 | 55 | 2 | 5 | 7 | 9 | 12 | 5 | 4 | 3 | 4 | 4 | ||
| 1944 | 44 | 3 | 2 | 6 | 4 | 6 | 4 | 1 | 4 | 2 | 3 | 6 | 3 |
| 1943 | 48 | 10 | 7 | 6 | 4 | 2 | 1 | 3 | 3 | 2 | 3 | 6 | 1 |
| 1942 | 51 | 2 | 3 | 3 | 5 | 4 | 7 | 6 | 5 | 4 | 5 | 7 | |
| 1941 | 37 | 7 | 1 | 4 | 4 | 3 | 5 | 5 | 1 | 6 | 1 | ||
| 1940 | 52 | 7 | 5 | 4 | 7 | 3 | 2 | 4 | 6 | 6 | 4 | 4 | |
| 1939 | 90 | 8 | 7 | 8 | 9 | 8 | 4 | 2 | 6 | 6 | 15 | 10 | 7 |
| 1938 | 90 | 14 | 9 | 15 | 7 | 6 | 7 | 5 | 8 | 4 | 9 | 6 | |
| 1937 | 76 | 8 | 14 | 15 | 12 | 1 | 10 | 10 | 6 | ||||
| 1936 | 3 | 2 | 1 | ||||||||||
| 1356 |