| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 261 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 840 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| March | 401 (Very high) | 4,367 (Very high) | 8 (Low) | 2 (Low) | 0 (Low) |
| April | 29 (Low) | 1,046 (Very high) | 22 (Low) | 23 (Medium) | 94 (Medium) |
| May | 13 (Low) | 8 (Low) | 16 (Low) | 19 (Low) | 249 (High) |
| June | 5 (Low) | 2 (Low) | 32 (Medium) | 78 (High) | 4 (Low) |
| July | 4 (Low) | 1 (Low) | 39 (Medium) | 46 (Medium) | 3 (Low) |
| August | 2 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 0 (Low) |
| September | 7 (Low) | 3 (Low) | 3 (Low) | 2 (Low) | 0 (Low) |
| October | 34 (Medium) | 4 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| November | 1,228 (Very high) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| December | 474 (Very high) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |