| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2009 | 2 | 1 | 1 | ||||||||||
| 2008 | 7 | 1 | 3 | 1 | 1 | 1 | |||||||
| 2007 | 8 | 1 | 2 | 1 | 1 | 2 | 1 | ||||||
| 2006 | 4 | 1 | 2 | 1 | |||||||||
| 2005 | 1 | 1 | |||||||||||
| 2004 | 17 | 7 | 5 | 5 | |||||||||
| 2003 | 26 | 9 | 1 | 3 | 1 | 4 | 2 | 2 | 3 | 1 | |||
| 2002 | 93 | 9 | 10 | 7 | 13 | 8 | 1 | 10 | 2 | 3 | 16 | 6 | 8 |
| 2001 | 78 | 1 | 7 | 9 | 8 | 4 | 7 | 9 | 4 | 5 | 13 | 5 | 6 |
| 2000 | 112 | 16 | 11 | 6 | 11 | 11 | 5 | 16 | 8 | 2 | 13 | 7 | 6 |
| 1999 | 16 | 1 | 5 | 3 | 1 | 1 | 5 | ||||||
| 1998 | 63 | 15 | 10 | 8 | 13 | 5 | 8 | 2 | 2 | ||||
| 1997 | 142 | 21 | 10 | 12 | 12 | 12 | 9 | 18 | 12 | 6 | 15 | 11 | 4 |
| 1996 | 106 | 3 | 8 | 13 | 10 | 6 | 16 | 11 | 9 | 13 | 13 | 4 | |
| 1995 | 35 | 23 | 9 | 3 | |||||||||
| 1994 | 118 | 10 | 8 | 15 | 12 | 14 | 2 | 10 | 9 | 4 | 16 | 10 | 8 |
| 1993 | 141 | 24 | 7 | 9 | 18 | 14 | 3 | 11 | 10 | 9 | 18 | 15 | 3 |
| 1992 | 158 | 7 | 17 | 12 | 15 | 14 | 17 | 17 | 17 | 18 | 16 | 8 | |
| 1991 | 98 | 3 | 7 | 10 | 13 | 13 | 6 | 17 | 3 | 9 | 12 | 5 | |
| 1990 | 146 | 14 | 9 | 11 | 11 | 14 | 7 | 20 | 5 | 13 | 16 | 14 | 12 |
| 1989 | 161 | 11 | 15 | 16 | 16 | 10 | 19 | 26 | 12 | 8 | 14 | 8 | 6 |
| 1988 | 170 | 15 | 1 | 13 | 18 | 17 | 26 | 14 | 17 | 20 | 18 | 11 | |
| 1987 | 166 | 10 | 12 | 22 | 15 | 5 | 7 | 22 | 14 | 15 | 18 | 10 | 16 |
| 1986 | 137 | 9 | 8 | 11 | 11 | 8 | 9 | 20 | 11 | 12 | 17 | 13 | 8 |
| 1985 | 148 | 20 | 10 | 15 | 11 | 16 | 14 | 9 | 13 | 9 | 12 | 10 | 9 |
| 1984 | 96 | 5 | 3 | 8 | 4 | 14 | 13 | 10 | 11 | 13 | 15 | ||
| 1983 | 51 | 6 | 1 | 11 | 13 | 3 | 5 | 9 | 3 | ||||
| 1982 | 28 | 5 | 10 | 13 | |||||||||
| 2328 |
