| 2021 | 2020 | 2019 | 2018 | Month |
|---|---|---|---|---|
| 15 | 5 | 15 | 38 | April |
| 20 | 9 | 20 | 19 | May |
| 9 | 6 | 5 | 25 | June |
| 11 | 19 | 11 | 24 | July |
| 14 | 21 | 8 | 34 | August |
| 23 | 17 | 3 | 33 | September |
| 36 | 28 | 6 | 40 | October |
| 34 | 21 | 45 | 34 | November |
| 32 | 74 | 111 | 49 | December |
| 59 | 115 | 112 | 77 | January |
| 31 | 83 | 116 | 44 | February |
| 18 | 57 | 18 | 39 | March |
| 302 | 455 | 470 | 456 | Grand total |