| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2019 | 12 | 3 | 4 | 4 | 1 | ||||||||
| 2018 | 59 | 3 | 1 | 3 | 5 | 6 | 3 | 5 | 9 | 5 | 9 | 7 | 3 |
| 2017 | 64 | 3 | 4 | 2 | 3 | 7 | 5 | 3 | 12 | 8 | 4 | 10 | 3 |
| 2016 | 60 | 5 | 3 | 5 | 3 | 8 | 6 | 5 | 9 | 5 | 6 | 4 | 1 |
| 2015 | 48 | 3 | 2 | 3 | 3 | 6 | 3 | 3 | 8 | 5 | 6 | 4 | 2 |
| 2014 | 67 | 3 | 2 | 3 | 5 | 11 | 2 | 5 | 13 | 5 | 6 | 8 | 4 |
| 2013 | 60 | 3 | 2 | 7 | 2 | 6 | 6 | 4 | 11 | 4 | 6 | 6 | 3 |
| 2012 | 55 | 3 | 2 | 2 | 3 | 5 | 3 | 8 | 9 | 8 | 7 | 4 | 1 |
| 2011 | 29 | 2 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 5 | 5 | 4 | 1 |
| 2010 | 30 | 2 | 12 | 1 | 2 | 1 | 1 | 6 | 3 | 2 | |||
| 2009 | 25 | 2 | 5 | 3 | 3 | 2 | 1 | 1 | 4 | 2 | 2 | ||
| 2008 | 84 | 9 | 1 | 10 | 11 | 8 | 5 | 8 | 11 | 9 | 7 | 2 | 3 |
| 2007 | 47 | 3 | 2 | 15 | 3 | 1 | 2 | 5 | 2 | 5 | 4 | 5 | |
| 2006 | 68 | 2 | 6 | 7 | 4 | 9 | 3 | 6 | 11 | 4 | 8 | 3 | 5 |
| 2005 | 103 | 5 | 6 | 11 | 8 | 15 | 8 | 10 | 14 | 5 | 6 | 11 | 4 |
| 2004 | 115 | 6 | 9 | 11 | 2 | 16 | 4 | 11 | 15 | 3 | 16 | 9 | 13 |
| 2003 | 28 | 14 | 6 | 8 | |||||||||
| 2002 | 16 | 2 | 12 | 2 | |||||||||
| 2001 | 4 | 1 | 3 | ||||||||||
| 2000 | - | ||||||||||||
| 1999 | 2 | 2 | |||||||||||
| 1998 | 130 | 8 | 16 | 9 | 17 | 8 | 13 | 12 | 12 | 7 | 8 | 20 | |
| 1997 | 67 | 3 | 5 | 14 | 10 | 2 | 8 | 9 | 16 | ||||
| 1996 | 43 | 2 | 21 | 3 | 4 | 2 | 2 | 2 | 3 | 4 | |||
| 1995 | 133 | 2 | 2 | 14 | 9 | 14 | 7 | 11 | 25 | 13 | 15 | 15 | 6 |
| 1994 | 43 | 1 | 1 | 17 | 2 | 17 | 5 | ||||||
| 1993 | 138 | 5 | 16 | 20 | 3 | 30 | 11 | 18 | 10 | 12 | 2 | 11 | |
| 1992 | 1 | 1 | |||||||||||
| 1531 |