| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2003 | 23 | 2 | 7 | 1 | 1 | 2 | 8 | 1 | 1 | ||||
| 2002 | 7 | 1 | 1 | 1 | 3 | 1 | |||||||
| 2001 | 12 | 1 | 1 | 2 | 1 | 3 | 4 | ||||||
| 2000 | 3 | 1 | 1 | 1 | |||||||||
| 1999 | 5 | 2 | 2 | 1 | |||||||||
| 1998 | 100 | 13 | 10 | 3 | 16 | 13 | 14 | 15 | 6 | 9 | 1 | ||
| 1997 | 102 | 1 | 3 | 5 | 15 | 16 | 7 | 10 | 10 | 14 | 15 | 6 | |
| 1996 | 63 | 3 | 6 | 9 | 7 | 1 | 6 | 12 | 1 | 10 | 8 | ||
| 1995 | 50 | 1 | 6 | 1 | 2 | 9 | 12 | 1 | 13 | 2 | 3 | ||
| 1994 | 62 | 1 | 6 | 5 | 3 | 7 | 6 | 2 | 3 | 10 | 11 | 8 | |
| 1993 | 79 | 1 | 12 | 1 | 2 | 4 | 4 | 10 | 6 | 6 | 22 | 7 | 4 |
| 1992 | 97 | 11 | 3 | 18 | 16 | 17 | 10 | 7 | 3 | 12 | |||
| 1991 | 166 | 18 | 18 | 15 | 12 | 10 | 9 | 15 | 12 | 21 | 24 | 12 | |
| 1990 | 152 | 10 | 18 | 13 | 13 | 13 | 2 | 8 | 5 | 19 | 23 | 14 | 14 |
| 1989 | 151 | 21 | 13 | 15 | 13 | 8 | 15 | 14 | 16 | 7 | 9 | 7 | 13 |
| 1988 | 171 | 12 | 15 | 18 | 11 | 14 | 11 | 24 | 14 | 7 | 14 | 17 | 14 |
| 1987 | 165 | 19 | 12 | 16 | 17 | 17 | 4 | 19 | 12 | 8 | 21 | 10 | 10 |
| 1986 | 167 | 19 | 17 | 12 | 18 | 16 | 16 | 18 | 8 | 10 | 11 | 4 | 18 |
| 1985 | 166 | 19 | 18 | 17 | 13 | 10 | 16 | 6 | 4 | 17 | 16 | 12 | 18 |
| 1984 | 219 | 10 | 16 | 15 | 25 | 23 | 18 | 13 | 20 | 23 | 18 | 21 | 17 |
| 1983 | 104 | 1 | 6 | 12 | 12 | 16 | 20 | 21 | 16 | ||||
| 2064 |
