| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 467 (Very high) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) |
| February | 1,058 (Very high) | 1 (Low) | 19 (Low) | 0 (Low) | 0 (Low) |
| March | 286 (Very high) | 2,043 (Very high) | 6 (Low) | 0 (Low) | 0 (Low) |
| April | 14 (Low) | 771 (Very high) | 28 (Low) | 16 (Low) | 1 (Low) |
| May | 4 (Low) | 9 (Low) | 490 (Very high) | 30 (Medium) | 123 (Medium) |
| June | 8 (Low) | 1 (Low) | 179 (Very high) | 11 (Low) | 290 (High) |
| July | 1 (Low) | 0 (Low) | 16 (Low) | 3 (Low) | 2 (Low) |
| August | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 1 (Low) |
| September | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| October | 9 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| November | 36 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| December | 53 (Medium) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) |