| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2019 | 2 | 1 | 1 | ||||||||||
| 2018 | 2 | 1 | 1 | ||||||||||
| 2017 | 10 | 1 | 1 | 1 | 2 | 3 | 1 | 1 | |||||
| 2016 | 10 | 5 | 2 | 1 | 1 | 1 | |||||||
| 2015 | 26 | 2 | 1 | 3 | 4 | 3 | 3 | 2 | 4 | 1 | 2 | 1 | |
| 2014 | 34 | 3 | 6 | 4 | 5 | 4 | 1 | 3 | 1 | 5 | 1 | 1 | |
| 2013 | 21 | 2 | 5 | 2 | 2 | 2 | 5 | 1 | 2 | ||||
| 2012 | 22 | 2 | 1 | 2 | 2 | 1 | 9 | 4 | 1 | ||||
| 2011 | 25 | 1 | 4 | 2 | 5 | 1 | 2 | 5 | 3 | 2 | |||
| 2010 | 46 | 7 | 5 | 6 | 5 | 3 | 10 | 3 | 3 | 2 | 2 | ||
| 2009 | 60 | 6 | 7 | 3 | 6 | 7 | 1 | 13 | 3 | 2 | 10 | 2 | |
| 2008 | 54 | 2 | 6 | 6 | 4 | 11 | 5 | 2 | 5 | 6 | 6 | 1 | |
| 2007 | 62 | 3 | 7 | 3 | 12 | 2 | 2 | 5 | 7 | 6 | 10 | 3 | 2 |
| 2006 | 57 | 4 | 8 | 5 | 10 | 7 | 5 | 8 | 8 | 1 | 1 | ||
| 2005 | 59 | 4 | 3 | 4 | 11 | 8 | 5 | 6 | 2 | 8 | 6 | 2 | |
| 2004 | 42 | 6 | 5 | 6 | 2 | 8 | 1 | 2 | 3 | 2 | 5 | 2 | |
| 2003 | 42 | 1 | 3 | 4 | 8 | 3 | 8 | 1 | 4 | 3 | 6 | 1 | |
| 2002 | 23 | 1 | 1 | 1 | 2 | 1 | 3 | 4 | 4 | 3 | 3 | ||
| 2001 | 4 | 1 | 1 | 1 | 1 | ||||||||
| 601 |
