| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2013 | 9 | 3 | 3 | 3 | |||||||||
| 2012 | 41 | 4 | 3 | 5 | 3 | 3 | 3 | 5 | 3 | 4 | 8 | ||
| 2011 | 10 | 1 | 1 | 1 | 3 | 2 | 2 | ||||||
| 2010 | 26 | 4 | 1 | 6 | 1 | 6 | 4 | 4 | |||||
| 2009 | 57 | 5 | 5 | 7 | 8 | 8 | 5 | 4 | 5 | 4 | 4 | 1 | 1 |
| 2008 | 69 | 4 | 4 | 5 | 8 | 9 | 5 | 5 | 6 | 7 | 3 | 7 | 6 |
| 2007 | 88 | 8 | 11 | 12 | 12 | 9 | 6 | 5 | 3 | 4 | 5 | 11 | 2 |
| 2006 | 50 | 6 | 4 | 6 | 5 | 4 | 8 | 2 | 5 | 3 | 4 | 3 | |
| 2005 | 27 | 2 | 5 | 4 | 7 | 4 | 4 | 1 | |||||
| 2004 | 49 | 5 | 11 | 7 | 6 | 9 | 6 | 3 | 2 | ||||
| 2003 | 93 | 8 | 11 | 11 | 9 | 10 | 10 | 6 | 11 | 4 | 3 | 3 | 7 |
| 2002 | 69 | 5 | 6 | 6 | 10 | 7 | 14 | 3 | 8 | 5 | 5 | ||
| 2001 | 49 | 3 | 2 | 2 | 11 | 9 | 13 | 8 | 1 | ||||
| 2000 | 58 | 3 | 3 | 7 | 7 | 7 | 9 | 6 | 7 | 6 | 3 | ||
| 1999 | 106 | 9 | 9 | 9 | 7 | 10 | 17 | 10 | 11 | 5 | 9 | 10 | |
| 1998 | 91 | 9 | 4 | 9 | 9 | 10 | 6 | 11 | 9 | 8 | 6 | 9 | 1 |
| 1997 | 59 | 5 | 16 | 4 | 2 | 1 | 2 | 1 | 2 | 6 | 4 | 8 | 8 |
| 1996 | 41 | 2 | 3 | 1 | 6 | 3 | 7 | 3 | 8 | 5 | 3 | ||
| 1995 | 55 | 3 | 1 | 2 | 1 | 5 | 23 | 2 | 5 | 9 | 4 | ||
| 1994 | 8 | 2 | 1 | 1 | 3 | 1 | |||||||
| 1993 | 17 | 1 | 1 | 3 | 1 | 1 | 10 | ||||||
| 1992 | 38 | 8 | 3 | 8 | 3 | 1 | 1 | 6 | 7 | 1 | |||
| 1991 | 22 | 6 | 2 | 1 | 5 | 3 | 5 | ||||||
| 1990 | 7 | 1 | 3 | 1 | 2 | ||||||||
| 1989 | 3 | 2 | 1 | ||||||||||
| 1142 |
