| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2013 | 7 | 2 | 2 | 3 | |||||||||
| 2012 | 16 | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 8 | ||||
| 2011 | 26 | 1 | 1 | 1 | 9 | 11 | 3 | ||||||
| 2010 | 40 | 2 | 7 | 2 | 6 | 3 | 8 | 11 | 1 | ||||
| 2009 | 12 | 2 | 2 | 7 | 1 | ||||||||
| 2008 | 26 | 9 | 9 | 4 | 3 | 1 | |||||||
| 2007 | 78 | 8 | 2 | 3 | 4 | 6 | 1 | 3 | 12 | 8 | 11 | 8 | 12 |
| 2006 | 93 | 12 | 8 | 9 | 12 | 10 | 9 | 5 | 6 | 9 | 3 | 2 | 8 |
| 2005 | 98 | 3 | 2 | 4 | 8 | 12 | 5 | 11 | 10 | 9 | 16 | 11 | 7 |
| 2004 | 16 | 1 | 2 | 1 | 4 | 1 | 1 | 5 | 1 | ||||
| 2003 | 11 | 4 | 4 | 2 | 1 | ||||||||
| 2002 | 1 | 1 | |||||||||||
| 2001 | 1 | 1 | |||||||||||
| 2000 | 34 | 7 | 9 | 9 | 6 | 3 | |||||||
| 1999 | 95 | 3 | 4 | 4 | 5 | 8 | 11 | 11 | 7 | 8 | 11 | 10 | 13 |
| 1998 | 13 | 4 | 3 | 3 | 1 | 1 | 1 | ||||||
| 1997 | 7 | 4 | 1 | 2 | |||||||||
| 1996 | 28 | 4 | 1 | 6 | 7 | 2 | 4 | 1 | 3 | ||||
| 1995 | 130 | 11 | 5 | 3 | 10 | 8 | 22 | 16 | 24 | 3 | 11 | 12 | 5 |
| 1994 | 163 | 15 | 7 | 17 | 13 | 13 | 14 | 13 | 19 | 18 | 9 | 18 | 7 |
| 1993 | 89 | 7 | 4 | 7 | 8 | 1 | 2 | 6 | 8 | 8 | 16 | 12 | 10 |
| 984 |
