| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2005 | 24 | 6 | 8 | 6 | 4 | ||||||||
| 2004 | 36 | 1 | 3 | 2 | 1 | 3 | 3 | 3 | 2 | 7 | 7 | 4 | |
| 2003 | 36 | 2 | 2 | 2 | 1 | 4 | 3 | 6 | 6 | 5 | 2 | 2 | 1 |
| 2002 | 30 | 4 | 10 | 3 | 1 | 1 | 3 | 1 | 2 | 2 | 3 | ||
| 2001 | 61 | 10 | 1 | 6 | 1 | 7 | 8 | 9 | 4 | 2 | 11 | 2 | |
| 2000 | 34 | 1 | 3 | 5 | 6 | 12 | 6 | 1 | |||||
| 1999 | 37 | 2 | 1 | 5 | 4 | 6 | 3 | 5 | 9 | 2 | |||
| 1998 | 93 | 7 | 2 | 11 | 11 | 13 | 5 | 9 | 11 | 8 | 11 | 5 | |
| 1997 | 88 | 7 | 7 | 7 | 1 | 10 | 9 | 7 | 9 | 6 | 10 | 9 | 6 |
| 1996 | 110 | 14 | 9 | 15 | 20 | 11 | 6 | 16 | 4 | 1 | 1 | 7 | 6 |
| 1995 | 137 | 12 | 13 | 4 | 15 | 15 | 17 | 14 | 17 | 11 | 19 | ||
| 1994 | 191 | 12 | 12 | 16 | 16 | 16 | 16 | 20 | 16 | 18 | 17 | 21 | 11 |
| 1993 | 106 | 3 | 7 | 7 | 7 | 14 | 13 | 13 | 12 | 9 | 12 | 9 | |
| 1992 | 27 | 3 | 9 | 4 | 1 | 1 | 1 | 1 | 3 | 4 | |||
| 1991 | 16 | 1 | 8 | 4 | 3 | ||||||||
| 1026 |
