| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1983 | 2 | 1 | 1 | ||||||||||
| 1982 | 8 | 1 | 1 | 1 | 3 | 2 | |||||||
| 1981 | 14 | 3 | 1 | 3 | 1 | 2 | 3 | 1 | |||||
| 1980 | 14 | 2 | 1 | 1 | 2 | 3 | 1 | 3 | 1 | ||||
| 1979 | 13 | 2 | 1 | 2 | 1 | 2 | 2 | 3 | |||||
| 1978 | 15 | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | ||
| 1977 | 36 | 1 | 5 | 1 | 5 | 2 | 4 | 6 | 2 | 3 | 3 | 2 | 2 |
| 1976 | 33 | 1 | 3 | 1 | 3 | 4 | 2 | 3 | 3 | 4 | 4 | 2 | 3 |
| 1975 | 27 | 1 | 1 | 1 | 3 | 4 | 2 | 4 | 4 | 2 | 1 | 1 | 3 |
| 1974 | 17 | 2 | 3 | 4 | 2 | 1 | 3 | 2 | |||||
| 1973 | 30 | 13 | 2 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 2 | 4 | |
| 1972 | 36 | 1 | 2 | 3 | 1 | 5 | 4 | 5 | 4 | 4 | 7 | ||
| 1971 | 44 | 2 | 2 | 4 | 5 | 3 | 3 | 4 | 5 | 3 | 3 | 6 | 4 |
| 1970 | 48 | 9 | 3 | 5 | 8 | 6 | 5 | 1 | 2 | 2 | 1 | 2 | 4 |
| 1969 | 57 | 1 | 2 | 5 | 5 | 4 | 4 | 5 | 5 | 5 | 8 | 8 | 5 |
| 1968 | 49 | 5 | 4 | 8 | 5 | 4 | 6 | 6 | 4 | 2 | 3 | 2 | |
| 1967 | 70 | 8 | 8 | 5 | 8 | 2 | 8 | 4 | 4 | 7 | 5 | 6 | 5 |
| 1966 | 109 | 7 | 8 | 9 | 21 | 12 | 6 | 5 | 9 | 9 | 7 | 9 | 7 |
| 1965 | 82 | 11 | 5 | 6 | 5 | 4 | 8 | 7 | 7 | 7 | 10 | 7 | 5 |
| 1964 | 118 | 8 | 7 | 15 | 11 | 11 | 6 | 17 | 10 | 7 | 8 | 9 | 9 |
| 1963 | 56 | 6 | 3 | 5 | 3 | 3 | 8 | 3 | 2 | 3 | 2 | 11 | 7 |
| 1962 | 49 | 4 | 2 | 3 | 2 | 3 | 5 | 5 | 7 | 4 | 6 | 4 | 4 |
| 1961 | 90 | 9 | 10 | 11 | 12 | 10 | 7 | 7 | 8 | 6 | 4 | 4 | 2 |
| 1960 | 44 | 4 | 3 | 5 | 4 | 2 | 3 | 2 | 8 | 7 | 6 | ||
| 1959 | 33 | 5 | 2 | 2 | 3 | 2 | 1 | 3 | 2 | 3 | 3 | 3 | 4 |
| 1958 | 80 | 1 | 3 | 14 | 5 | 7 | 6 | 7 | 6 | 11 | 6 | 9 | 5 |
| 1957 | 42 | 4 | 7 | 4 | 2 | 4 | 4 | 3 | 3 | 5 | 4 | 2 | |
| 1956 | 65 | 11 | 4 | 10 | 8 | 8 | 6 | 2 | 3 | 5 | 2 | 3 | 3 |
| 1955 | 80 | 16 | 12 | 6 | 7 | 1 | 7 | 9 | 9 | 3 | 2 | 2 | 6 |
| 1954 | 226 | 21 | 18 | 14 | 20 | 21 | 17 | 18 | 21 | 19 | 23 | 20 | 14 |
| 1953 | 96 | 1 | 6 | 18 | 20 | 20 | 4 | 5 | 1 | 1 | 20 | ||
| 1683 |
