| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 269 (Very high) | 1 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| February | 696 (Very high) | 1 (Low) | 7 (Low) | 0 (Low) | 0 (Low) |
| March | 84 (Medium) | 304 (Very high) | 5 (Low) | 0 (Low) | 0 (Low) |
| April | 4 (Low) | 750 (Very high) | 1 (Low) | 3 (Low) | 0 (Low) |
| May | 6 (Low) | 7 (Low) | 252 (Very high) | 27 (Medium) | 85 (Medium) |
| June | 6 (Low) | 22 (Low) | 68 (Medium) | 16 (Low) | 196 (Medium) |
| July | 2 (Low) | 6 (Low) | 19 (Low) | 6 (Low) | 2 (Low) |
| August | 2 (Low) | 2 (Low) | 6 (Low) | 4 (Low) | 2 (Low) |
| September | 2 (Low) | 3 (Low) | 7 (Low) | 5 (Low) | 1 (Low) |
| October | 5 (Low) | 4 (Low) | 3 (Low) | 2 (Low) | 1 (Low) |
| November | 10 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| December | 151 (High) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |