| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 844 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| February | 1,305 (Very high) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) |
| March | 269 (Very high) | 5,680 (Very high) | 26 (Low) | 4 (Low) | 0 (Low) |
| April | 5 (Low) | 7,949 (Very high) | 19 (Low) | 56 (High) | 8 (Low) |
| May | 7 (Low) | 11 (Low) | 92 (High) | 32 (Medium) | 68 (Medium) |
| June | 45 (Medium) | 0 (Low) | 122 (High) | 49 (Medium) | 107 (Medium) |
| July | 9 (Low) | 0 (Low) | 118 (High) | 18 (Low) | 11 (Low) |
| August | 9 (Low) | 0 (Low) | 11 (Low) | 5 (Low) | 1 (Low) |
| September | 7 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 0 (Low) |
| October | 25 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) |
| November | 2 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) |
| December | 27 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |