| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 941 (Very high) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) |
| February | 1,024 (Very high) | 0 (Low) | 19 (Low) | 0 (Low) | 0 (Low) |
| March | 460 (Very high) | 471 (Very high) | 30 (Medium) | 8 (Low) | 0 (Low) |
| April | 34 (Medium) | 24 (Low) | 26 (Low) | 91 (High) | 5 (Low) |
| May | 8 (Low) | 1 (Low) | 257 (Very high) | 135 (Very high) | 174 (Medium) |
| June | 9 (Low) | 0 (Low) | 339 (Very high) | 156 (Very high) | 209 (High) |
| July | 2 (Low) | 0 (Low) | 81 (Medium) | 9 (Low) | 3 (Low) |
| August | 3 (Low) | 0 (Low) | 16 (Low) | 2 (Low) | 1 (Low) |
| September | 2 (Low) | 0 (Low) | 7 (Low) | 2 (Low) | 0 (Low) |
| October | 24 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| November | 158 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 91 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |