| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 1,496 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| February | 827 (Very high) | 0 (Low) | 15 (Low) | 0 (Low) | 0 (Low) |
| March | 959 (Very high) | 798 (Very high) | 9 (Low) | 3 (Low) | 0 (Low) |
| April | 70 (Medium) | 2,691 (Very high) | 19 (Low) | 22 (Medium) | 5 (Low) |
| May | 27 (Low) | 22 (Low) | 337 (Very high) | 55 (High) | 359 (High) |
| June | 13 (Low) | 1 (Low) | 204 (Very high) | 37 (Medium) | 21 (Low) |
| July | 5 (Low) | 9 (Low) | 79 (Medium) | 7 (Low) | 3 (Low) |
| August | 2 (Low) | 0 (Low) | 6 (Low) | 2 (Low) | 0 (Low) |
| September | 5 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 0 (Low) |
| October | 4 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| November | 16 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) |
| December | 9 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |