| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 557 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 400 (Very high) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) |
| March | 153 (High) | 584 (Very high) | 7 (Low) | 1 (Low) | 1 (Low) |
| April | 7 (Low) | 3,486 (Very high) | 27 (Low) | 46 (Medium) | 2 (Low) |
| May | 29 (Low) | 21 (Low) | 496 (Very high) | 75 (High) | 387 (High) |
| June | 36 (Medium) | 0 (Low) | 536 (Very high) | 42 (Medium) | 1,080 (Very high) |
| July | 2 (Low) | 0 (Low) | 118 (High) | 3 (Low) | 21 (Low) |
| August | 1 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 3 (Low) |
| September | 1 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 2 (Low) |
| October | 11 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) |
| November | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |
| December | 26 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |