| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 846 (Very high) | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) |
| February | 1,694 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) |
| March | 637 (Very high) | 3 (Low) | 12 (Low) | 0 (Low) | 0 (Low) |
| April | 37 (Medium) | 1,133 (Very high) | 28 (Low) | 71 (High) | 11 (Low) |
| May | 68 (Medium) | 41 (Medium) | 429 (Very high) | 135 (Very high) | 394 (High) |
| June | 41 (Medium) | 10 (Low) | 225 (Very high) | 82 (High) | 301 (High) |
| July | 5 (Low) | 5 (Low) | 44 (Medium) | 20 (Medium) | 4 (Low) |
| August | 4 (Low) | 4 (Low) | 8 (Low) | 5 (Low) | 1 (Low) |
| September | 2 (Low) | 2 (Low) | 7 (Low) | 1 (Low) | 0 (Low) |
| October | 6 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |
| November | 77 (Medium) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) |
| December | 143 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |