| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 698 (Very high) | 1 (Low) | 5 (Low) | 1 (Low) | 1 (Low) |
| February | 892 (Very high) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) |
| March | 304 (Very high) | 2 (Low) | 8 (Low) | 0 (Low) | 0 (Low) |
| April | 12 (Low) | 3,131 (Very high) | 10 (Low) | 21 (Medium) | 0 (Low) |
| May | 7 (Low) | 97 (Medium) | 333 (Very high) | 62 (High) | 184 (Medium) |
| June | 41 (Medium) | 18 (Low) | 189 (Very high) | 25 (Medium) | 163 (Medium) |
| July | 2 (Low) | 8 (Low) | 27 (Low) | 9 (Low) | 2 (Low) |
| August | 4 (Low) | 13 (Low) | 7 (Low) | 2 (Low) | 3 (Low) |
| September | 3 (Low) | 30 (Medium) | 3 (Low) | 2 (Low) | 1 (Low) |
| October | 6 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| November | 122 (High) | 3 (Low) | 1 (Low) | 1 (Low) | 2 (Low) |
| December | 339 (Very high) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) |