| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 1,414 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 685 (Very high) | 0 (Low) | 21 (Low) | 2 (Low) | 0 (Low) |
| March | 386 (Very high) | 2,318 (Very high) | 25 (Low) | 6 (Low) | 5 (Low) |
| April | 20 (Low) | 870 (Very high) | 26 (Low) | 19 (Low) | 327 (High) |
| May | 14 (Low) | 5 (Low) | 214 (Very high) | 19 (Low) | 780 (Very high) |
| June | 12 (Low) | 4 (Low) | 30 (Medium) | 4 (Low) | 41 (Low) |
| July | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| August | — | — | — | — | — |
| September | — | — | — | — | — |
| October | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) |
| November | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) |
| December | 29 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) |