| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1979 | 80 | 22 | 9 | 14 | 16 | 15 | 2 | 2 | |||||
| 1978 | 75 | 24 | 5 | 27 | 6 | 1 | 6 | 4 | 2 | ||||
| 1977 | 29 | 28 | 1 | ||||||||||
| 1976 | 88 | 11 | 11 | 9 | 26 | 14 | 9 | 4 | 4 | ||||
| 1975 | 74 | 1 | 5 | 15 | 10 | 18 | 14 | 11 | |||||
| 1974 | 42 | 14 | 15 | 2 | 11 | ||||||||
| 1973 | 94 | 8 | 13 | 11 | 19 | 20 | 7 | 1 | 1 | 8 | 6 | ||
| 1972 | 78 | 19 | 18 | 10 | 14 | 11 | 1 | 1 | 2 | 2 | |||
| 1971 | 38 | 4 | 3 | 3 | 1 | 2 | 4 | 6 | 15 | ||||
| 1970 | 9 | 1 | 4 | 1 | 1 | 2 | |||||||
| 1969 | 44 | 2 | 4 | 3 | 2 | 5 | 4 | 4 | 5 | 6 | 4 | 5 | |
| 1968 | 41 | 2 | 7 | 3 | 4 | 3 | 8 | 5 | 5 | 4 | |||
| 1967 | 49 | 2 | 4 | 5 | 4 | 5 | 4 | 4 | 5 | 5 | 3 | 3 | 5 |
| 1966 | 124 | 12 | 12 | 14 | 10 | 10 | 10 | 12 | 14 | 10 | 10 | 5 | 5 |
| 1965 | 46 | 5 | 4 | 2 | 5 | 4 | 6 | 5 | 4 | 5 | 4 | 1 | 1 |
| 1964 | 52 | 5 | 2 | 3 | 4 | 6 | 4 | 5 | 4 | 5 | 5 | 4 | 5 |
| 1963 | 69 | 5 | 5 | 5 | 13 | 13 | 4 | 1 | 2 | 3 | 8 | 4 | 6 |
| 1962 | 63 | 12 | 3 | 9 | 3 | 5 | 4 | 6 | 3 | 4 | 5 | 5 | 4 |
| 1961 | 44 | 5 | 3 | 4 | 1 | 4 | 5 | 4 | 5 | 5 | 8 | ||
| 1960 | 36 | 4 | 4 | 4 | 3 | 5 | 6 | 5 | 2 | 1 | 2 | ||
| 1959 | 28 | 2 | 2 | 3 | 6 | 8 | 3 | 1 | 3 | ||||
| 1203 |
