| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1995 | 7 | 2 | 1 | 2 | 1 | 1 | |||||||
| 1994 | 10 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | ||||
| 1993 | 8 | 1 | 3 | 1 | 1 | 2 | |||||||
| 1992 | 3 | 2 | 1 | ||||||||||
| 1991 | 6 | 2 | 2 | 1 | 1 | ||||||||
| 1990 | 8 | 1 | 1 | 1 | 4 | 1 | |||||||
| 1989 | - | ||||||||||||
| 1988 | 53 | 8 | 7 | 5 | 2 | 4 | 4 | 5 | 7 | 2 | 6 | 3 | |
| 1987 | 156 | 15 | 16 | 12 | 8 | 15 | 19 | 14 | 17 | 14 | 15 | 5 | 6 |
| 1986 | 108 | 17 | 12 | 14 | 4 | 6 | 6 | 7 | 3 | 3 | 14 | 11 | 11 |
| 1985 | 191 | 18 | 17 | 21 | 13 | 19 | 17 | 18 | 12 | 15 | 17 | 11 | 13 |
| 1984 | 211 | 28 | 17 | 25 | 6 | 13 | 21 | 17 | 14 | 13 | 25 | 19 | 13 |
| 1983 | 188 | 20 | 14 | 29 | 28 | 18 | 17 | 24 | 2 | 5 | 6 | 11 | 14 |
| 1982 | 219 | 20 | 19 | 18 | 19 | 22 | 22 | 16 | 24 | 16 | 26 | 14 | 3 |
| 1981 | 276 | 23 | 23 | 24 | 23 | 26 | 22 | 18 | 22 | 21 | 32 | 24 | 18 |
| 1980 | 166 | 20 | 17 | 12 | 13 | 13 | 17 | 18 | 17 | 5 | 13 | 15 | 6 |
| 1979 | 195 | 11 | 8 | 29 | 19 | 25 | 17 | 6 | 9 | 20 | 17 | 21 | 13 |
| 1978 | 232 | 20 | 20 | 19 | 18 | 21 | 15 | 23 | 24 | 21 | 20 | 17 | 14 |
| 1977 | 148 | 13 | 16 | 14 | 17 | 18 | 19 | 18 | 14 | 4 | 1 | 3 | 11 |
| 1976 | 79 | 4 | 2 | 16 | 15 | 9 | 11 | 10 | 12 | ||||
| 1975 | 39 | 7 | 5 | 2 | 1 | 2 | 4 | 1 | 3 | 5 | 9 | ||
| 1974 | 24 | 2 | 1 | 2 | 1 | 2 | 3 | 5 | 4 | 4 | |||
| 2327 |
