| 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 | 231 | 0 | 2 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 42 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 2 |
| February | 716 | 0 | 5 | 0 | 0 | 0 | 7 | 17 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 48 | 0 | 233 | 2 | 36 | 0 | 1 | 0 | 0 | 2 | 0 | 3 |
| March | 203 | 469 | 11 | 1 | 0 | 6 | 0 | 20 | 43 | 1 | 0 | 1 | 4 | 1 | 1 | 23 | 228 | 108 | 66 | 252 | 1 | 1 | 1 | 27 | 9 | 4 | 1 |
| April | 11 | 563 | 7 | 12 | 0 | 9 | 0 | 1 | 273 | 0 | 0 | 1 | 0 | 4 | 1 | 3 | 762 | 6 | 58 | 16 | 1 | 72 | 3 | 6 | 1 | 4 | 2 |
| May | 33 | 7 | 206 | 63 | 208 | 9 | 3 | 0 | 584 | 0 | 2 | 13 | 0 | 25 | 1 | 0 | 77 | 1 | 123 | 1 | 13 | 403 | 28 | 1 | 5 | 20 | 3 |
| June | 19 | 1 | 73 | 12 | 169 | 1 | 2 | 0 | 96 | 0 | 11 | 6 | 0 | 3 | 3 | 0 | 6 | 0 | 146 | 2 | 7 | 269 | 10 | 1 | 11 | 10 | 5 |
| July | 1 | 1 | 21 | 2 | 4 | 0 | 4 | 0 | 0 | 1 | 15 | 5 | 0 | 1 | 3 | 0 | 1 | 1 | 9 | 0 | 8 | 36 | 1 | 0 | 9 | 9 | 12 |
| August | 2 | 0 | 5 | 3 | 2 | 0 | 1 | 0 | 0 | 1 | 8 | 3 | 0 | 1 | 1 | 0 | 1 | 0 | 5 | 0 | 14 | 11 | 1 | 0 | 2 | 34 | 11 |
| September | 1 | 1 | 6 | 1 | 1 | 0 | 1 | 0 | 0 | 5 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 35 | 12 | 0 | 0 | 2 | 4 | 6 |
| October | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| November | 27 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 5 | 1 | 0 | 5 | 0 | 1 |
| December | 104 | 1 | 5 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 1 | 1 | 0 | 1 | 5 | 0 | 0 | 3 | 0 | 1 |