| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 834 (Very high) | 1 (Low) | 18 (Low) | 0 (Low) | 1 (Low) |
| February | 249 (Very high) | 0 (Low) | 9 (Low) | 0 (Low) | 2 (Low) |
| March | 210 (Very high) | 81 (Medium) | 9 (Low) | 1 (Low) | 0 (Low) |
| April | 3 (Low) | 509 (Very high) | 12 (Low) | 18 (Low) | 2 (Low) |
| May | 16 (Low) | 18 (Low) | 118 (High) | 26 (Medium) | 31 (Low) |
| June | 37 (Medium) | 3 (Low) | 100 (High) | 26 (Medium) | 70 (Medium) |
| July | 1 (Low) | 4 (Low) | 35 (Medium) | 4 (Low) | 9 (Low) |
| August | 2 (Low) | 0 (Low) | 7 (Low) | 2 (Low) | 2 (Low) |
| September | 1 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 1 (Low) |
| October | 2 (Low) | 1 (Low) | 3 (Low) | 1 (Low) | 0 (Low) |
| November | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 16 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) |