| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 148 (High) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) |
| February | 251 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| March | 111 (High) | 3,115 (Very high) | 13 (Low) | 9 (Low) | 2 (Low) |
| April | 18 (Low) | 768 (Very high) | 70 (Medium) | 44 (Medium) | 317 (High) |
| May | 22 (Low) | 16 (Low) | 96 (High) | 22 (Medium) | 1,108 (Very high) |
| June | 6 (Low) | 1 (Low) | 58 (Medium) | 91 (High) | 5 (Low) |
| July | 1 (Low) | 2 (Low) | 41 (Medium) | 22 (Medium) | 3 (Low) |
| August | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 2 (Low) |
| September | 1 (Low) | 6 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| October | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| November | 596 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) |
| December | 188 (High) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) |