| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2012 | 0 | 3 | 4 | 0 | 1 | 5 | 2 | 0 | 0 | 1 | 0 | 1 |
| 2013 | 0 | 5 | 11 | 0 | 7 | 3 | 0 | 0 | 3 | 9 | 7 | 1 |
| 2014 | 3 | 10 | 20 | 15 | 9 | 7 | 10 | 7 | 10 | 9 | 9 | 8 |
| 2015 | 18 | 11 | 8 | 6 | 9 | 13 | 5 | 6 | 9 | 14 | 8 | 8 |
| 2016 | 11 | 10 | 13 | 20 | 17 | 13 | 11 | 12 | 29 | 31 | 28 | 10 |
| 2017 | 20 | 44 | 30 | 25 | 25 | 14 | 6 | 14 | 9 | 11 | 20 | 16 |
| 2018 | 33 | 13 | 19 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |