| 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 | 135 | 0 | 7 | 0 | 0 | 1 | 0 | 17 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 72 | 0 | 36 | 1 | 0 | 1 | 1 | 0 | 0 | 19 | 1 | 8 |
| February | 759 | 0 | 20 | 0 | 0 | 0 | 0 | 11 | 9 | 1 | 0 | 1 | 1 | 0 | 0 | 66 | 0 | 137 | 1 | 79 | 1 | 4 | 1 | 6 | 42 | 4 | 14 |
| March | 79 | 628 | 10 | 1 | 3 | 0 | 1 | 1 | 117 | 0 | 0 | 0 | 1 | 0 | 1 | 4 | 184 | 13 | 269 | 194 | 1 | 45 | 0 | 23 | 37 | 5 | 27 |
| April | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| May | 11 | 1 | 188 | 36 | 835 | 0 | 0 | 0 | 15 | 0 | 0 | 9 | 0 | 6 | 4 | 1 | 0 | 0 | 103 | 0 | 6 | 156 | 9 | 1 | 11 | 30 | 27 |
| June | 5 | 0 | 139 | 12 | 51 | 1 | 4 | 0 | 1 | 0 | 9 | 14 | 0 | 1 | 3 | 0 | 0 | 0 | 74 | 0 | 7 | 14 | 11 | 1 | 10 | 19 | 42 |
| July | 2 | 1 | 42 | 3 | 10 | 0 | 5 | 0 | 0 | 1 | 7 | 8 | 0 | 1 | 2 | 0 | 1 | 1 | 5 | 0 | 9 | 5 | 1 | 0 | 9 | 19 | 42 |
| August | 1 | 1 | 6 | 1 | 2 | 0 | 0 | 0 | 0 | 1 | 1 | 4 | 0 | 1 | 1 | 0 | 1 | 0 | 3 | 1 | 9 | 1 | 1 | 0 | 2 | 14 | 11 |
| September | 14 | 1 | 5 | 0 | 3 | 0 | 1 | 0 | 0 | 4 | 0 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 5 | 0 | 23 | 1 | 0 | 0 | 3 | 1 | 9 |
| October | 17 | 9 | 5 | 2 | 3 | 1 | 0 | 1 | 0 | 1 | 0 | 4 | 0 | 0 | 1 | 0 | 1 | 0 | 35 | 1 | 3 | 10 | 1 | 0 | 5 | 2 | 7 |
| November | 43 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 3 | 0 | 3 | 0 | 0 | 1 | 1 | 0 | 0 | 7 | 0 | 1 | 0 | 0 | 0 | 26 | 2 | 16 |
| December | 385 | 0 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 1 | 1 | 0 | 1 | 2 | 0 | 0 | 24 | 1 | 8 |