| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Am | Oak | Sorrel | Willow | Nettle | Unidentified |
| January | 231 | 0 | 4 | 0 | 0 | 0 | 0 | 1 | — | 1 | 0 | 0 | 1 | 0 | 0 | 36 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 1 |
| February | 291 | 1 | 5 | 0 | 0 | 0 | 0 | 2 | — | 0 | 0 | 0 | 2 | 0 | 0 | 25 | 0 | 44 | 1 | 7 | 0 | 3 | 3 | 0 | 1 | 3 |
| March | 108 | 1 | 7 | 0 | 0 | 0 | 0 | 1 | — | 0 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 15 | 3 | 28 | 0 | 2 | 8 | 2 | 2 | 11 |
| April | 4 | 7 | 3 | 0 | 0 | 2 | 0 | 0 | — | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 2 | 2 | 0 | 2 | 1 | 3 | 1 | 6 |
| May | 1 | 2 | 30 | 5 | 6 | 1 | 1 | 0 | — | 0 | 2 | 1 | 0 | 2 | 0 | 0 | 22 | 0 | 8 | 0 | 1 | 181 | 14 | 1 | 14 | 37 |
| June | 1 | 0 | 28 | 7 | 17 | 0 | 2 | 0 | — | 0 | 2 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 21 | 1 | 1 | 51 | 10 | 0 | 2 | 5 |
| July | 1 | 0 | 26 | 2 | 1 | 0 | 1 | 0 | — | 0 | 3 | 3 | 0 | 1 | 0 | 0 | 1 | 0 | 3 | 0 | 1 | 2 | 4 | 0 | 1 | 6 |
| August | 2 | 0 | 2 | 2 | 1 | 0 | 0 | 0 | — | 1 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 1 | 1 | 0 | 0 | 2 |
| September | 1 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | — | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 1 |
| October | 4 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | — | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 4 | 0 | 0 | 0 | 2 |
| November | 7 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | — | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 2 | 0 | 0 | 0 | 4 |
| December | 23 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 1 | 1 |