| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 271 (Very high) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) |
| February | 259 (Very high) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) |
| March | 202 (Very high) | 576 (Very high) | 10 (Low) | 0 (Low) | 0 (Low) |
| April | 9 (Low) | 1,393 (Very high) | 9 (Low) | 4 (Low) | 0 (Low) |
| May | 9 (Low) | 4 (Low) | 423 (Very high) | 88 (High) | 315 (High) |
| June | 1 (Low) | 0 (Low) | 24 (Low) | 9 (Low) | 112 (Medium) |
| July | 1 (Low) | 0 (Low) | 68 (Medium) | 8 (Low) | 4 (Low) |
| August | 2 (Low) | 0 (Low) | 9 (Low) | 5 (Low) | 2 (Low) |
| September | 1 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 0 (Low) |
| October | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| November | 5 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |
| December | 102 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |