| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2021 | 2 | 1 | 1 | ||||||||||
| 2020 | 6 | 1 | 2 | 3 | |||||||||
| 2019 | 22 | 1 | 1 | 1 | 4 | 5 | 3 | 4 | 2 | 1 | |||
| 2018 | 26 | 1 | 2 | 1 | 2 | 4 | 2 | 3 | 5 | 4 | 2 | ||
| 2017 | 25 | 1 | 4 | 3 | 11 | 2 | 4 | ||||||
| 2016 | 19 | 1 | 2 | 1 | 2 | 6 | 2 | 2 | 2 | 1 | |||
| 2015 | 40 | 5 | 2 | 5 | 10 | 4 | 2 | 5 | 1 | 2 | 2 | 2 | |
| 2014 | 42 | 3 | 3 | 5 | 6 | 2 | 6 | 4 | 4 | 5 | 4 | ||
| 2013 | 31 | 2 | 4 | 3 | 3 | 1 | 9 | 3 | 1 | 3 | 2 | ||
| 2012 | 19 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 1 | 2 | 3 | ||
| 2011 | 26 | 2 | 2 | 4 | 2 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | |
| 2010 | 25 | 1 | 2 | 3 | 1 | 1 | 3 | 2 | 9 | 2 | 1 | ||
| 2009 | 35 | 10 | 1 | 5 | 2 | 5 | 1 | 2 | 9 | ||||
| 2008 | 17 | 4 | 1 | 1 | 2 | 7 | 2 | ||||||
| 2007 | 53 | 3 | 4 | 10 | 12 | 1 | 3 | 5 | 3 | 3 | 7 | 1 | 1 |
| 2006 | 107 | 5 | 5 | 5 | 4 | 8 | 10 | 10 | 14 | 13 | 14 | 13 | 6 |
| 2005 | 37 | 1 | 3 | 10 | 7 | 5 | 6 | 3 | 2 | ||||
| 2004 | 54 | 7 | 8 | 4 | 9 | 6 | 8 | 8 | 4 | ||||
| 2003 | 64 | 3 | 3 | 5 | 6 | 12 | 7 | 4 | 8 | 4 | 1 | 8 | 3 |
| 2002 | 51 | 1 | 3 | 3 | 6 | 5 | 4 | 4 | 3 | 4 | 3 | 7 | 8 |
| 2001 | 56 | 5 | 10 | 6 | 2 | 5 | 10 | 8 | 2 | 2 | 1 | 1 | 4 |
| 2000 | 58 | 5 | 2 | 1 | 7 | 9 | 4 | 5 | 9 | 2 | 1 | 8 | 5 |
| 1999 | 97 | 8 | 8 | 5 | 6 | 11 | 13 | 11 | 11 | 14 | 7 | 3 | |
| 1998 | 114 | 13 | 8 | 9 | 7 | 11 | 6 | 11 | 11 | 10 | 10 | 11 | 7 |
| 1997 | 120 | 20 | 8 | 10 | 9 | 16 | 13 | 5 | 8 | 7 | 9 | 8 | 7 |
| 1996 | 98 | 3 | 5 | 13 | 7 | 12 | 12 | 7 | 4 | 4 | 7 | 13 | 11 |
| 1995 | 98 | 13 | 5 | 6 | 2 | 4 | 8 | 14 | 4 | 15 | 6 | 8 | 13 |
| 1994 | 114 | 15 | 7 | 14 | 12 | 8 | 6 | 7 | 9 | 11 | 7 | 8 | 10 |
| 1993 | 105 | 12 | 9 | 11 | 8 | 3 | 1 | 13 | 11 | 4 | 7 | 16 | 10 |
| 1992 | 111 | 2 | 9 | 7 | 8 | 10 | 13 | 19 | 9 | 16 | 11 | 7 | |
| 1991 | 33 | 1 | 4 | 6 | 1 | 2 | 9 | 10 | |||||
| 1990 | 1 | 1 | |||||||||||
| 1706 |
