| 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 | Other | Unidentified |
| January | 1.198 | 0 | 7 | 0 | 0 | 0 | 0 | 16 | 1 | 2 | 0 | 1 | 3 | 0 | 1 | 16 | 0 | 6 | 1 | 0 | 0 | 23 | 1 | 0 | 2 | — | 1 |
| February | 2.337 | 8 | 36 | 0 | 0 | 0 | 0 | 7 | 6 | 1 | 1 | 0 | 2 | 0 | 0 | 239 | 0 | 168 | 1 | 526 | 0 | 2 | 6 | 8 | 2 | 0 | 5 |
| March | 1.293 | 55 | 16 | 1 | 0 | 34 | 0 | 2 | 50 | 0 | 0 | 0 | 0 | 2 | 0 | 137 | 4 | 74 | 104 | 415 | 1 | 12 | 16 | 11 | 5 | 3 | 23 |
| April | 23 | 138 | 15 | 5 | 1 | 24 | 0 | 1 | 494 | 0 | 5 | 1 | 0 | 4 | 0 | 11 | 286 | 1 | 90 | 8 | 1 | 186 | 6 | 14 | 10 | 14 | 6 |
| May | 12 | 4 | 70 | 28 | 324 | 1 | 5 | 0 | 35 | 0 | 1 | 4 | 0 | 8 | 0 | 2 | 48 | 0 | 455 | 1 | 5 | 765 | 39 | 3 | 37 | 7 | 7 |
| June | 28 | 1 | 58 | 9 | 28 | 1 | 7 | 0 | 0 | 0 | 22 | 3 | 0 | 3 | 1 | 0 | 1 | 0 | 297 | 0 | 2 | 60 | 10 | 0 | 6 | 8 | 3 |
| July | 2 | 0 | 17 | 2 | 7 | 1 | 3 | 0 | 0 | 3 | 5 | 2 | 0 | 1 | 2 | 0 | 1 | 0 | 4 | 0 | 3 | 11 | 2 | 0 | 3 | 3 | 3 |
| August | 1 | 0 | 6 | 3 | 1 | 0 | 2 | 0 | 0 | 5 | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 3 | 0 | 5 | 4 | 0 | 0 | 1 | 3 | 1 |
| September | 4 | 0 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 6 | 3 | 0 | 0 | 1 | 0 | 0 |
| October | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 1 | 0 | 0 | 0 | 0 | 1 |
| November | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 |
| December | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 3 | 0 | 0 | 2 | 0 | 1 | 2 | 0 | 0 | 0 | 0 | 0 |