| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2011 | 0 | 0 | 0 | 0 | 3 | 3 | 4 | 6 | 1 | 0 | 0 | 0 |
| 2012 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 |
| 2013 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
| 2014 | 8 | 6 | 2 | 4 | 10 | 4 | 4 | 9 | 1 | 6 | 2 | 4 |
| 2015 | 0 | 0 | 2 | 2 | 4 | 4 | 4 | 2 | 5 | 6 | 5 | 8 |
| 2016 | 6 | 13 | 2 | 14 | 3 | 8 | 4 | 1 | 0 | 0 | 0 | 0 |
| 2017 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 |
| 2018 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |