| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 754 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| February | 167 (High) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| March | 537 (Very high) | 256 (High) | 6 (Low) | 1 (Low) | 0 (Low) |
| April | 31 (Medium) | 366 (Very high) | 11 (Low) | 36 (Medium) | 16 (Low) |
| May | 32 (Medium) | 4 (Low) | 250 (Very high) | 47 (Medium) | 205 (High) |
| June | 38 (Medium) | 1 (Low) | 49 (Medium) | 17 (Low) | 42 (Low) |
| July | 2 (Low) | 0 (Low) | 37 (Medium) | 5 (Low) | 2 (Low) |
| August | 1 (Low) | 0 (Low) | 6 (Low) | 2 (Low) | 1 (Low) |
| September | 1 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 1 (Low) |
| October | 7 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 1 (Low) |
| November | 42 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 279 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |