| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2022 | 3 | 1 | 1 | 1 | |||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 2 | 1 | 1 | ||||||||||
| 2019 | 8 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | |||||
| 2018 | 13 | 1 | 1 | 2 | 1 | 1 | 3 | 1 | 2 | 1 | |||
| 2017 | 21 | 2 | 6 | 1 | 2 | 2 | 3 | 3 | 2 | ||||
| 2016 | 19 | 3 | 3 | 2 | 1 | 1 | 3 | 3 | 1 | 2 | |||
| 2015 | 7 | 1 | 2 | 1 | 1 | 1 | 1 | ||||||
| 2014 | 13 | 1 | 1 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | |||
| 2013 | 8 | 1 | 3 | 1 | 2 | 1 | |||||||
| 2012 | 5 | 2 | 1 | 2 | |||||||||
| 2011 | 3 | 1 | 1 | 1 | |||||||||
| 2010 | 12 | 3 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | ||||
| 2009 | 15 | 1 | 1 | 2 | 1 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | |
| 2008 | 13 | 4 | 2 | 1 | 2 | 1 | 1 | 1 | 1 | ||||
| 2007 | 14 | 3 | 2 | 3 | 2 | 1 | 1 | 2 | |||||
| 2006 | 22 | 4 | 1 | 2 | 2 | 1 | 3 | 1 | 4 | 1 | 3 | ||
| 2005 | 13 | 4 | 1 | 1 | 1 | 1 | 1 | 4 | |||||
| 2004 | 13 | 4 | 2 | 2 | 3 | 1 | 1 | ||||||
| 2003 | 15 | 1 | 1 | 1 | 4 | 1 | 1 | 3 | 1 | 2 | |||
| 2002 | 23 | 1 | 2 | 3 | 3 | 2 | 1 | 2 | 4 | 5 | |||
| 2001 | 43 | 7 | 8 | 3 | 2 | 1 | 7 | 6 | 9 | ||||
| 2000 | 61 | 6 | 7 | 5 | 7 | 3 | 5 | 9 | 4 | 3 | 8 | 4 | |
| 1999 | 83 | 4 | 5 | 9 | 14 | 10 | 10 | 7 | 11 | 7 | 6 | ||
| 1998 | 31 | 9 | 11 | 3 | 7 | 1 | |||||||
| 1997 | 88 | 4 | 11 | 7 | 2 | 10 | 9 | 6 | 10 | 15 | 4 | 2 | 8 |
| 1996 | 61 | 3 | 3 | 8 | 4 | 7 | 5 | 7 | 3 | 6 | 5 | 5 | 5 |
| 1995 | 105 | 14 | 16 | 13 | 7 | 2 | 4 | 12 | 11 | 9 | 4 | 8 | 5 |
| 1994 | 100 | 6 | 8 | 20 | 3 | 7 | 1 | 5 | 11 | 14 | 12 | 4 | 9 |
| 1993 | 151 | 15 | 16 | 16 | 14 | 6 | 16 | 14 | 11 | 4 | 14 | 15 | 10 |
| 1992 | 175 | 17 | 8 | 22 | 18 | 14 | 14 | 10 | 10 | 17 | 17 | 18 | 10 |
| 1991 | 29 | 1 | 5 | 10 | 4 | 4 | 2 | 3 | |||||
| 1170 |
