| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 235 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) |
| February | 931 (Very high) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) |
| March | 891 (Very high) | 363 (Very high) | 15 (Low) | 1 (Low) | 1 (Low) |
| April | 16 (Low) | 183 (High) | 32 (Medium) | 22 (Medium) | 1 (Low) |
| May | 5 (Low) | 9 (Low) | 297 (Very high) | 20 (Medium) | 123 (Medium) |
| June | 1 (Low) | 1 (Low) | 183 (Very high) | 5 (Low) | 282 (High) |
| July | 1 (Low) | 0 (Low) | 25 (Low) | 1 (Low) | 3 (Low) |
| August | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| September | 3 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 1 (Low) |
| October | 20 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| November | 18 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 8 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |