| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 295 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 673 (Very high) | 0 (Low) | 7 (Low) | 1 (Low) | 0 (Low) |
| March | 164 (High) | 589 (Very high) | 15 (Low) | 1 (Low) | 0 (Low) |
| April | 11 (Low) | 628 (Very high) | 17 (Low) | 30 (Medium) | 18 (Low) |
| May | 5 (Low) | 10 (Low) | 338 (Very high) | 50 (High) | 304 (High) |
| June | 2 (Low) | 3 (Low) | 85 (High) | 6 (Low) | 172 (Medium) |
| July | 3 (Low) | 1 (Low) | 17 (Low) | 1 (Low) | 9 (Low) |
| August | 1 (Low) | 7 (Low) | 5 (Low) | 2 (Low) | 4 (Low) |
| September | 1 (Low) | 3 (Low) | 4 (Low) | 1 (Low) | 2 (Low) |
| October | 3 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| November | 15 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 84 (Medium) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |