| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2002 | 2 | 2 | |||||||||||
| 2001 | - | ||||||||||||
| 2000 | 12 | 4 | 1 | 7 | |||||||||
| 1999 | 43 | 4 | 14 | 19 | 6 | ||||||||
| 1998 | 48 | 1 | 10 | 12 | 4 | 3 | 6 | 1 | 5 | 6 | |||
| 1997 | 151 | 13 | 20 | 13 | 13 | 20 | 23 | 15 | 16 | 7 | 7 | 4 | |
| 1996 | 166 | 10 | 12 | 17 | 15 | 13 | 20 | 14 | 15 | 13 | 16 | 12 | 9 |
| 1995 | 170 | 19 | 13 | 9 | 18 | 11 | 9 | 17 | 10 | 14 | 20 | 16 | 14 |
| 1994 | 62 | 1 | 1 | 1 | 8 | 8 | 9 | 19 | 15 | ||||
| 1993 | 128 | 1 | 4 | 22 | 18 | 11 | 19 | 4 | 15 | 4 | 11 | 15 | 4 |
| 1992 | 122 | 12 | 19 | 17 | 16 | 14 | 9 | 1 | 13 | 16 | 4 | 1 | |
| 1991 | 186 | 12 | 17 | 14 | 17 | 16 | 18 | 15 | 13 | 6 | 20 | 24 | 14 |
| 1990 | 93 | 21 | 15 | 5 | 19 | 18 | 15 | ||||||
| 1989 | 111 | 19 | 14 | 6 | 2 | 19 | 13 | 10 | 6 | 17 | 5 | ||
| 1988 | 132 | 22 | 13 | 8 | 5 | 8 | 10 | 16 | 15 | 10 | 5 | 5 | 15 |
| 1987 | 142 | 16 | 8 | 11 | 21 | 11 | 17 | 14 | 2 | 14 | 14 | 14 | |
| 1986 | 185 | 22 | 17 | 18 | 14 | 15 | 12 | 17 | 9 | 10 | 14 | 21 | 16 |
| 1985 | 200 | 26 | 5 | 5 | 17 | 24 | 20 | 16 | 3 | 25 | 17 | 20 | 22 |
| 1984 | 190 | 24 | 24 | 24 | 19 | 16 | 13 | 27 | 12 | 2 | 2 | 13 | 14 |
| 1983 | 124 | 15 | 4 | 11 | 17 | 5 | 4 | 8 | 20 | 21 | 4 | 7 | 8 |
| 1982 | 74 | 1 | 1 | 1 | 8 | 9 | 10 | 10 | 9 | 11 | 8 | 6 | |
| 1981 | 72 | 9 | 9 | 10 | 8 | 9 | 8 | 9 | 10 | ||||
| 1980 | 2 | 2 | |||||||||||
| 1979 | 1 | 1 | |||||||||||
| 1978 | 2 | 2 | |||||||||||
| 2418 |
