| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2012 | 73 | 6 | 4 | 5 | 9 | 3 | 4 | 2 | 10 | 2 | 5 | 11 | 12 |
| 2011 | 49 | 2 | 3 | 2 | 3 | 4 | 6 | 5 | 6 | 5 | 3 | 6 | 4 |
| 2010 | 66 | 5 | 2 | 9 | 2 | 4 | 4 | 6 | 8 | 6 | 11 | 4 | 5 |
| 2009 | 76 | 5 | 6 | 6 | 6 | 7 | 7 | 4 | 10 | 5 | 6 | 5 | 9 |
| 2008 | 80 | 6 | 8 | 7 | 3 | 6 | 7 | 9 | 6 | 6 | 8 | 6 | 8 |
| 2007 | 77 | 3 | 4 | 4 | 5 | 9 | 7 | 4 | 9 | 10 | 7 | 7 | 8 |
| 2006 | 74 | 5 | 7 | 6 | 8 | 11 | 4 | 6 | 7 | 5 | 6 | 6 | 3 |
| 2005 | 57 | 2 | 1 | 6 | 5 | 3 | 7 | 4 | 4 | 6 | 4 | 7 | 8 |
| 2004 | 51 | 2 | 4 | 5 | 6 | 5 | 2 | 6 | 4 | 4 | 3 | 7 | 3 |
| 2003 | 40 | 2 | 3 | 4 | 3 | 3 | 4 | 3 | 5 | 2 | 5 | 4 | 2 |
| 2002 | 105 | 5 | 4 | 8 | 8 | 11 | 10 | 11 | 14 | 14 | 9 | 8 | 3 |
| 2001 | 40 | 1 | 1 | 3 | 3 | 7 | 6 | 3 | 7 | 5 | 4 | ||
| 2000 | 39 | 5 | 10 | 5 | 4 | 3 | 6 | 4 | 2 | ||||
| 1999 | 65 | 8 | 5 | 6 | 7 | 6 | 5 | 6 | 5 | 3 | 5 | 6 | 3 |
| 1998 | 134 | 13 | 11 | 8 | 9 | 13 | 8 | 13 | 12 | 14 | 8 | 10 | 15 |
| 1997 | 67 | 5 | 5 | 6 | 10 | 5 | 4 | 4 | 3 | 6 | 11 | 8 | |
| 1996 | 33 | 3 | 2 | 4 | 3 | 5 | 2 | 3 | 4 | 3 | 4 | ||
| 1995 | 13 | 2 | 1 | 1 | 1 | 2 | 1 | 2 | 2 | 1 | |||
| 1994 | 1 | 1 | |||||||||||
| 1140 |