| Year | Total | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2020 | 13 | 6 | 4 | 1 | 2 | ||||||||
| 2019 | 69 | 6 | 2 | 4 | 7 | 4 | 3 | 11 | 10 | 6 | 4 | 8 | 4 |
| 2018 | 76 | 7 | 9 | 4 | 12 | 4 | 7 | 3 | 11 | 2 | 5 | 10 | 2 |
| 2017 | 99 | 8 | 8 | 7 | 17 | 8 | 8 | 8 | 11 | 8 | 5 | 6 | 5 |
| 2016 | 89 | 5 | 4 | 3 | 12 | 8 | 9 | 7 | 7 | 7 | 5 | 10 | 12 |
| 2015 | 72 | 7 | 6 | 4 | 10 | 4 | 8 | 4 | 5 | 6 | 9 | 5 | 4 |
| 2014 | 64 | 5 | 9 | 10 | 5 | 8 | 4 | 4 | 7 | 3 | 3 | 4 | 2 |
| 2013 | 56 | 5 | 6 | 4 | 3 | 2 | 4 | 5 | 6 | 5 | 5 | 8 | 3 |
| 2012 | 48 | 3 | 3 | 4 | 1 | 5 | 3 | 8 | 1 | 5 | 8 | 6 | 1 |
| 2011 | 59 | 3 | 5 | 4 | 6 | 7 | 7 | 4 | 3 | 8 | 5 | 6 | 1 |
| 2010 | 70 | 6 | 7 | 2 | 6 | 7 | 9 | 8 | 4 | 5 | 9 | 4 | 3 |
| 2009 | 44 | 2 | 6 | 4 | 5 | 7 | 5 | 1 | 1 | 5 | 4 | 1 | 3 |
| 2008 | 16 | 2 | 3 | 2 | 1 | 4 | 1 | 2 | 1 | ||||
| 2007 | 17 | 1 | 2 | 1 | 3 | 2 | 1 | 1 | 2 | 3 | 1 | ||
| 2006 | 26 | 3 | 1 | 4 | 6 | 2 | 1 | 1 | 1 | 2 | 2 | 3 | |
| 2005 | 28 | 3 | 5 | 2 | 2 | 2 | 3 | 1 | 2 | 2 | 2 | 4 | |
| 2004 | 11 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 1 | 1 | |||
| 2003 | 9 | 1 | 2 | 2 | 1 | 2 | 1 | ||||||
| 866 |
