| 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 | 229 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 116 | 0 | 36 | 6 | 1 | 0 | 3 | 4 | 0 | 1 | 1 |
| February | 72 | 0 | 2 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 43 | 0 | 13 | 0 | 7 | 0 | 3 | 3 | 0 | 0 | 1 |
| March | 145 | 9 | 4 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 4 | 0 | 2 | 1 | 14 | 1 | 1 | 2 | 0 | 1 | 5 |
| April | 14 | 6 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 11 | 3 | 3 | 1 | 0 | 12 | 2 | 2 | 1 | 16 |
| May | 1 | 1 | 5 | 3 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 13 | 0 | 2 | 1 | 2 | 73 | 2 | 1 | 53 | 33 |
| June | 18 | 0 | 177 | 36 | 35 | 2 | 34 | 0 | 0 | 0 | 2 | 6 | 0 | 3 | 0 | 0 | 2 | 0 | 293 | 0 | 11 | 120 | 74 | 0 | 6 | 17 |
| July | 3 | 0 | 417 | 15 | 12 | 3 | 3 | 0 | 0 | 1 | 14 | 4 | 0 | 1 | 1 | 0 | 4 | 0 | 27 | 0 | 5 | 38 | 26 | 0 | 2 | 15 |
| August | 2 | 1 | 17 | 5 | 2 | 1 | 2 | 0 | 2 | 4 | 2 | 6 | 0 | 1 | 2 | 0 | 1 | 0 | 4 | 0 | 10 | 15 | 1 | 0 | 2 | 5 |
| September | 5 | 0 | 6 | 3 | 1 | 1 | 1 | 0 | 2 | 4 | 0 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 5 | 0 | 3 | 8 | 1 | 0 | 1 | 2 |
| October | 11 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 43 | 0 | 1 | 8 | 1 | 0 | 0 | 1 |
| November | 5 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 26 | 0 | 1 | 2 | 1 | 0 | 0 | 1 |
| December | 87 | 0 | 3 | 0 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 3 | 0 | 0 | 3 | 1 | 0 | 3 | 1 | 0 | 1 | 1 |