| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Mugwort | Chestnut | Composites | Hazel | Heather | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Am | Oak | Sorrel | Willow | Nettle | Unidentified |
| January | 29 | 0 | 14 | 0 | 0 | 0 | 1 | 6 | 1 | 0 | 0 | 0 | 0 | 7 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 1 |
| February | 12 | 0 | 11 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 18 | 0 | 8 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 1 |
| March | 15 | 237 | 4 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 4 | 0 | 3 | 4 | 3 | 70 | 0 | 8 | 2 | 3 | 6 | 5 |
| April | 6 | 25 | 3 | 3 | 4 | 6 | 0 | 4 | 0 | 0 | 1 | 1 | 6 | 0 | 14 | 1 | 4 | 1 | 1 | 147 | 2 | 0 | 3 | 27 |
| May | 1 | 2 | 15 | 9 | 64 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 6 | 0 | 1 | 0 | 8 | 0 | 2 | 63 | 5 | 0 | 3 | 22 |
| June | 1 | 0 | 12 | 4 | 18 | 0 | 2 | 0 | 0 | 8 | 1 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 4 | 11 | 2 | 0 | 5 | 4 |
| July | 1 | 0 | 3 | 2 | 0 | 0 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4 | 2 | 1 | 0 | 2 | 33 |
| August | 1 | 0 | 1 | 1 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 1 | 0 | 0 | 1 | 2 |
| September | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 2 | 0 | 0 | 1 | 1 |
| October | 3 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 0 | 1 | 2 |
| November | 10 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 1 |
| December | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 1 |