| 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 | 136 | 0 | 12 | 0 | 1 | 1 | 0 | 8 | — | 1 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 1 | 1 | 0 | 1 | 4 | 1 | 0 | 2 | 3 |
| February | 501 | 0 | 15 | 1 | 1 | 1 | 0 | 25 | — | 0 | 0 | 0 | 1 | 0 | 0 | 22 | 1 | 129 | 0 | 36 | 1 | 4 | 2 | 3 | 15 | 5 |
| March | 570 | 655 | 10 | 6 | 4 | 11 | 0 | 1 | — | 1 | 0 | 1 | 0 | 4 | 1 | 2 | 14 | 43 | 12 | 218 | 2 | 12 | 4 | 4 | 46 | 31 |
| April | 7 | 314 | 8 | 11 | 3 | 14 | 1 | 1 | — | 0 | 1 | 1 | 0 | 1 | 0 | 2 | 153 | 1 | 19 | 14 | 1 | 63 | 5 | 3 | 7 | 15 |
| May | 3 | 19 | 190 | 31 | 196 | 2 | 1 | 0 | — | 0 | 1 | 10 | 0 | 2 | 1 | 0 | 50 | 1 | 6 | 0 | 8 | 118 | 12 | 3 | 3 | 18 |
| June | 9 | 0 | 65 | 11 | 548 | 0 | 1 | 0 | — | 0 | 5 | 4 | 0 | 2 | 10 | 1 | 6 | 0 | 39 | 0 | 6 | 161 | 16 | 0 | 5 | 22 |
| July | 2 | 0 | 36 | 7 | 15 | 0 | 1 | 0 | — | 0 | 10 | 4 | 0 | 1 | 2 | 0 | 1 | 0 | 6 | 0 | 16 | 5 | 6 | 0 | 5 | 14 |
| August | 1 | 0 | 6 | 2 | 3 | 0 | 0 | 0 | — | 2 | 1 | 3 | 1 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 34 | 3 | 1 | 0 | 3 | 7 |
| September | 2 | 0 | 3 | 1 | 3 | 0 | 0 | 0 | — | 10 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 31 | 3 | 1 | 0 | 2 | 4 |
| October | 46 | 0 | 3 | 1 | 1 | 0 | 0 | 1 | — | 4 | 1 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 2 | 0 | 4 | 5 | 1 | 0 | 2 | 13 |
| November | 40 | 0 | 1 | 2 | 1 | 0 | 0 | 0 | — | 32 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 2 | 0 | 2 | 3 | 0 | 0 | 2 | 4 |
| December | 292 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 3 | 5 |