| 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 | 92 | 0 | 2 | 0 | 0 | 0 | 1 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 11 | 0 | 10 | 1 | 0 | 0 | 2 | 1 | 0 | 1 | 0 | 1 |
| February | 131 | 0 | 4 | 0 | 0 | 0 | 0 | 32 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 26 | 0 | 77 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 4 |
| March | 179 | 5 | 13 | 1 | 0 | 0 | 0 | 2 | 25 | 0 | 0 | 1 | 1 | 2 | 0 | 39 | 5 | 50 | 1 | 640 | 0 | 5 | 2 | 4 | 18 | 11 | 5 |
| April | 23 | 494 | 20 | 27 | 33 | 25 | 1 | 1 | 135 | 0 | 0 | 7 | 1 | 1 | 1 | 9 | 153 | 1 | 171 | 41 | 8 | 510 | 21 | 4 | 13 | 20 | 23 |
| May | 75 | 18 | 344 | 36 | 268 | 1 | 19 | 0 | 155 | 0 | 10 | 11 | 0 | 5 | 1 | 0 | 14 | 1 | 61 | 1 | 4 | 138 | 33 | 3 | 12 | 31 | 10 |
| June | 29 | 4 | 173 | 22 | 404 | 1 | 3 | 0 | 86 | 0 | 15 | 12 | 0 | 5 | 1 | 0 | 1 | 0 | 71 | 0 | 6 | 98 | 24 | 0 | 9 | 32 | 9 |
| July | 1 | 0 | 13 | 5 | 1 | 0 | 2 | 0 | 0 | 1 | 7 | 3 | 0 | 1 | 1 | 0 | 1 | 0 | 2 | 0 | 6 | 3 | 1 | 0 | 3 | 13 | 1 |
| August | 1 | 0 | 9 | 2 | 1 | 0 | 1 | 0 | 0 | 5 | 6 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 16 | 4 | 0 | 0 | 3 | 25 | 3 |
| September | 1 | 0 | 2 | 1 | 2 | 0 | 0 | 0 | 0 | 5 | 6 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 22 | 5 | 0 | 0 | 1 | 2 | 4 |
| October | 18 | 0 | 3 | 1 | 1 | 0 | 0 | 0 | 0 | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 8 | 1 | 0 | 0 | 1 | 1 | 1 |
| November | 69 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 15 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 2 |
| December | 42 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 2 |