| 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 | 462 | 0 | 1 | 0 | 0 | 0 | 0 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 0 | 5 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | — | 3 |
| February | 292 | 0 | 4 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 6 | 0 | 56 | 1 | 694 | 0 | 0 | 0 | 0 | 4 | — | 5 |
| March | 113 | 150 | 6 | 0 | 0 | 2 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 4 | 4 | 32 | 167 | 0 | 0 | 0 | 5 | 5 | 5 | 7 |
| April | 14 | 33 | 7 | 24 | 0 | 1 | 0 | 0 | 3 | 0 | 3 | 1 | 0 | 6 | 1 | 0 | 11 | 0 | 33 | 18 | 0 | 832 | 6 | 3 | 8 | 5 | 52 |
| May | 19 | 6 | 169 | 64 | 420 | 0 | 36 | 0 | 4 | 0 | 3 | 5 | 0 | 5 | 2 | 0 | 2 | 0 | 369 | 4 | 7 | 453 | 25 | 4 | 6 | 15 | 31 |
| June | 17 | 0 | 53 | 20 | 62 | 0 | 8 | 0 | 0 | 0 | 9 | 4 | 0 | 10 | 19 | 0 | 0 | 0 | 240 | 0 | 4 | 100 | 16 | 5 | 8 | 6 | 12 |
| July | 4 | 0 | 21 | 6 | 11 | 0 | 14 | 0 | 0 | 0 | 11 | 1 | 0 | 1 | 87 | 0 | 2 | 0 | 8 | 0 | 4 | 5 | 3 | 1 | 2 | 3 | 5 |
| August | 1 | 0 | 10 | 2 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 3 | 1 | 29 | 1 | 1 | 0 | 3 | 2 | 2 |
| September | 2 | 0 | 5 | 1 | 0 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 32 | 0 | 13 | 5 | 0 | 0 | 2 | 1 | 3 |
| October | 17 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 14 | 0 | 3 | 2 | 0 | 0 | 2 | 0 | 3 |
| November | 12 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 3 | 3 | 0 | 0 | 1 | 14 | 5 |
| December | 28 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 4 | 19 |