| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991 | 2 | 28 | 7 | 1 | 0 | 35 | 19 | 4 | 0 | 0 | 0 | 0 |
| 1992 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 7 |
| 1993 | 53 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 1994 | 9 | 1 | 1 | 2 | 0 | 0 | 0 | 10 | 5 | 4 | 3 | 2 |
| 1995 | 0 | 0 | 0 | 17 | 0 | 23 | 29 | 0 | 28 | 2 | 1 | 13 |
| 1996 | 7 | 2 | 2 | 2 | 0 | 0 | 10 | 1 | 0 | 11 | 23 | 0 |
| 1997 | 4 | 13 | 6 | 0 | 0 | 4 | 0 | 0 | 0 | 1 | 0 | 38 |
| 1998 | 0 | 0 | 4 | 1 | 4 | 15 | 0 | 0 | 0 | 0 | 3 | 0 |
| 1999 | 7 | 4 | 4 | 7 | 9 | 1 | 0 | 7 | 1 | 0 | 5 | 0 |
| 2000 | 0 | 0 | 0 | 0 | 3 | 17 | 1 | 0 | 2 | 0 | 0 | 1 |
| 2001 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |