| 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 | 88 | 0 | 2 | 0 | 0 | 0 | 0 | 5 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| February | 426 | 0 | 11 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 16 | 0 | 126 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
| March | 108 | 559 | 9 | 1 | 0 | 0 | 0 | 3 | 4 | 0 | 0 | 4 | 0 | 1 | 0 | 3 | 25 | 45 | 14 | 22 | 0 | 3 | 2 | 2 | 2 | 1 | 2 |
| April | 7 | 538 | 10 | 2 | 0 | 1 | 0 | 0 | 6 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 36 | 1 | 11 | 2 | 0 | 21 | 3 | 1 | 2 | 2 | 2 |
| May | 1 | 0 | 29 | 3 | 4 | 0 | 0 | 0 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 2 | 50 | 5 | 0 | 1 | 6 | 0 |
| June | 1 | 0 | 8 | 3 | 5 | 0 | 4 | 0 | 0 | 0 | 11 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 7 | 0 | 0 | 1 | 5 | 8 |
| July | 1 | 1 | 9 | 2 | 7 | 0 | 2 | 0 | 0 | 1 | 15 | 2 | 0 | 1 | 10 | 0 | 1 | 1 | 7 | 0 | 8 | 10 | 2 | 1 | 4 | 6 | 8 |
| August | 1 | 0 | 5 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 5 | 0 | 8 | 7 | 1 | 0 | 3 | 4 | 6 |
| September | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 2 | 0 | 0 | 0 | 1 | 4 |
| October | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 2 | 0 | 3 |
| November | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 2 |
| December | 19 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 1 |