| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2015 | 1 | 1 | |||||||||||
| 2014 | 1 | 1 | |||||||||||
| 2013 | 41 | 3 | 6 | 10 | 6 | 3 | 1 | 4 | 2 | 1 | 1 | 4 | |
| 2012 | 52 | 8 | 5 | 4 | 9 | 6 | 6 | 3 | 3 | 6 | 2 | ||
| 2011 | 97 | 11 | 7 | 11 | 8 | 6 | 11 | 8 | 4 | 6 | 7 | 14 | 4 |
| 2010 | 114 | 9 | 12 | 8 | 12 | 9 | 9 | 10 | 5 | 12 | 12 | 10 | 6 |
| 2009 | 90 | 5 | 7 | 3 | 10 | 5 | 13 | 9 | 3 | 9 | 11 | 9 | 6 |
| 2008 | 98 | 9 | 10 | 12 | 16 | 10 | 7 | 6 | 5 | 6 | 5 | 4 | 8 |
| 2007 | 102 | 8 | 6 | 10 | 5 | 11 | 7 | 13 | 7 | 12 | 9 | 7 | 7 |
| 2006 | 69 | 10 | 13 | 8 | 11 | 10 | 12 | 5 | |||||
| 2005 | 117 | 9 | 6 | 8 | 10 | 12 | 6 | 16 | 9 | 11 | 11 | 14 | 5 |
| 2004 | 126 | 2 | 8 | 6 | 15 | 10 | 12 | 14 | 13 | 13 | 11 | 11 | 11 |
| 2003 | 53 | 6 | 3 | 6 | 4 | 13 | 10 | 7 | 4 | ||||
| 2002 | 86 | 3 | 10 | 14 | 13 | 11 | 11 | 14 | 8 | 2 | |||
| 2001 | 64 | 6 | 11 | 17 | 1 | 12 | 9 | 8 | |||||
| 2000 | 128 | 1 | 15 | 17 | 13 | 10 | 13 | 16 | 6 | 8 | 14 | 10 | 5 |
| 1999 | 135 | 5 | 11 | 18 | 13 | 13 | 11 | 17 | 5 | 11 | 13 | 11 | 7 |
| 1998 | 127 | 6 | 12 | 16 | 10 | 14 | 11 | 5 | 2 | 13 | 19 | 11 | 8 |
| 1997 | 133 | 8 | 10 | 17 | 11 | 16 | 11 | 9 | 5 | 11 | 17 | 12 | 6 |
| 1996 | 141 | 4 | 18 | 15 | 3 | 9 | 20 | 13 | 4 | 10 | 20 | 15 | 10 |
| 1995 | 128 | 3 | 14 | 14 | 12 | 6 | 18 | 14 | 5 | 9 | 16 | 6 | 11 |
| 1994 | 109 | 1 | 11 | 8 | 10 | 7 | 9 | 18 | 11 | 7 | 10 | 7 | 10 |
| 1993 | 72 | 1 | 12 | 2 | 1 | 9 | 6 | 8 | 6 | 6 | 18 | 2 | 1 |
| 1992 | 94 | 3 | 18 | 9 | 12 | 17 | 18 | 17 | |||||
| 1991 | 71 | 10 | 10 | 12 | 7 | 10 | 15 | 7 | |||||
| 1990 | 82 | 1 | 1 | 8 | 7 | 14 | 14 | 10 | 12 | 7 | 8 | ||
| 1989 | 31 | 1 | 1 | 2 | 8 | 11 | 2 | 5 | 1 | ||||
| 1988 | 155 | 12 | 4 | 11 | 17 | 12 | 19 | 11 | 9 | 21 | 18 | 14 | 7 |
| 1987 | 135 | 24 | 11 | 11 | 6 | 22 | 10 | 11 | 18 | 15 | 7 | ||
| 1986 | 113 | 1 | 1 | 14 | 12 | 8 | 19 | 10 | 7 | 24 | 8 | 9 | |
| 2765 |