| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1996 | 7 | 1 | 5 | 1 | |||||||||
| 1995 | 3 | 1 | 2 | ||||||||||
| 1994 | 40 | 2 | 2 | 1 | 1 | 17 | 1 | 16 | |||||
| 1993 | 58 | 12 | 14 | 9 | 9 | 2 | 4 | 1 | 1 | 4 | 2 | ||
| 1992 | 170 | 5 | 10 | 13 | 18 | 18 | 14 | 8 | 20 | 18 | 22 | 13 | 11 |
| 1991 | 165 | 22 | 21 | 15 | 1 | 12 | 26 | 22 | 13 | 9 | 17 | 7 | |
| 1990 | 185 | 13 | 14 | 14 | 26 | 13 | 5 | 18 | 9 | 16 | 18 | 21 | 18 |
| 1989 | 101 | 5 | 7 | 17 | 3 | 20 | 8 | 18 | 13 | 10 | |||
| 1988 | 24 | 3 | 3 | 3 | 8 | 7 | |||||||
| 1987 | 115 | 15 | 13 | 19 | 12 | 16 | 19 | 3 | 9 | 9 | |||
| 1986 | 82 | 19 | 16 | 10 | 2 | 2 | 1 | 2 | 3 | 2 | 3 | 10 | 12 |
| 1985 | 100 | 7 | 13 | 11 | 12 | 3 | 3 | 2 | 10 | 6 | 7 | 14 | 12 |
| 1984 | 50 | 4 | 1 | 4 | 9 | 7 | 10 | 15 | |||||
| 1100 |
