| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 1,024 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| February | 612 (Very high) | 1 (Low) | 18 (Low) | 0 (Low) | 0 (Low) |
| March | 527 (Very high) | 2,165 (Very high) | 12 (Low) | 0 (Low) | 9 (Low) |
| April | 30 (Medium) | 2,959 (Very high) | 24 (Low) | 16 (Low) | 20 (Low) |
| May | 48 (Medium) | 9 (Low) | 299 (Very high) | 22 (Medium) | 534 (Very high) |
| June | 15 (Low) | 1 (Low) | 160 (Very high) | 18 (Low) | 15 (Low) |
| July | 1 (Low) | 1 (Low) | 48 (Medium) | 3 (Low) | 6 (Low) |
| August | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) |
| September | 1 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) |
| October | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| November | 6 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 4 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |