| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2013 | 1 | 1 | |||||||||||
| 2012 | 14 | 9 | 5 | ||||||||||
| 2011 | 32 | 1 | 3 | 6 | 8 | 10 | 4 | ||||||
| 2010 | - | ||||||||||||
| 2009 | 75 | 2 | 10 | 5 | 11 | 9 | 6 | 10 | 11 | 7 | 4 | ||
| 2008 | 54 | 2 | 4 | 1 | 11 | 9 | 5 | 9 | 10 | 3 | |||
| 2007 | 1 | 1 | |||||||||||
| 2006 | 49 | 10 | 9 | 5 | 13 | 9 | 3 | ||||||
| 2005 | 112 | 10 | 8 | 2 | 15 | 13 | 4 | 9 | 11 | 10 | 16 | 12 | 2 |
| 2004 | 107 | 10 | 7 | 4 | 15 | 11 | 8 | 8 | 12 | 7 | 10 | 12 | 3 |
| 2003 | 111 | 11 | 8 | 10 | 8 | 16 | 3 | 11 | 9 | 7 | 11 | 12 | 5 |
| 2002 | 57 | 1 | 14 | 8 | 5 | 13 | 11 | 5 | |||||
| 2001 | 10 | 10 | |||||||||||
| 2000 | 103 | 16 | 11 | 7 | 10 | 11 | 5 | 4 | 4 | 11 | 11 | 13 | |
| 1999 | 122 | 17 | 9 | 10 | 11 | 8 | 7 | 14 | 10 | 3 | 17 | 13 | 3 |
| 1998 | 126 | 16 | 10 | 9 | 12 | 7 | 8 | 15 | 8 | 7 | 18 | 12 | 4 |
| 1997 | 140 | 20 | 8 | 11 | 13 | 12 | 8 | 18 | 12 | 8 | 15 | 11 | 4 |
| 1996 | 131 | 22 | 10 | 9 | 13 | 10 | 7 | 16 | 10 | 7 | 11 | 12 | 4 |
| 1995 | 140 | 23 | 9 | 13 | 10 | 9 | 7 | 17 | 10 | 9 | 17 | 9 | 7 |
| 1994 | 139 | 21 | 8 | 15 | 12 | 14 | 3 | 20 | 9 | 3 | 16 | 10 | 8 |
| 1993 | 157 | 25 | 7 | 9 | 18 | 15 | 3 | 23 | 10 | 11 | 18 | 15 | 3 |
| 1992 | 156 | 20 | 8 | 15 | 16 | 13 | 5 | 24 | 10 | 8 | 17 | 15 | 5 |
| 1991 | 148 | 20 | 5 | 15 | 16 | 12 | 5 | 17 | 13 | 9 | 19 | 12 | 5 |
| 1990 | 146 | 21 | 6 | 11 | 12 | 15 | 6 | 17 | 11 | 7 | 20 | 12 | 8 |
| 1989 | 144 | 15 | 3 | 14 | 16 | 11 | 5 | 22 | 11 | 8 | 21 | 13 | 5 |
| 1988 | 130 | 2 | 12 | 17 | 13 | 10 | 22 | 7 | 6 | 20 | 8 | 13 | |
| 1987 | 1 | 1 | |||||||||||
| 2406 |