| 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 | 269 | 1 | 3 | 1 | 1 | 0 | 0 | 7 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 37 | 0 | 5 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 2 |
| February | 696 | 1 | 7 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 29 | 0 | 102 | 2 | 5 | 0 | 0 | 1 | 1 | 3 | 0 | 3 |
| March | 84 | 304 | 5 | 0 | 0 | 1 | 0 | 4 | 6 | 0 | 0 | 0 | 1 | 1 | 0 | 6 | 5 | 51 | 3 | 137 | 0 | 1 | 0 | 1 | 3 | 0 | 1 |
| April | 4 | 750 | 1 | 3 | 0 | 1 | 0 | 0 | 14 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 4 | 2 | 3 | 11 | 0 | 6 | 1 | 1 | 6 | 1 | 2 |
| May | 6 | 7 | 252 | 27 | 85 | 2 | 51 | 0 | 13 | 0 | 0 | 5 | 0 | 2 | 0 | 0 | 2 | 1 | 159 | 1 | 2 | 403 | 27 | 2 | 10 | 33 | 3 |
| June | 6 | 22 | 68 | 16 | 196 | 1 | 20 | 2 | 2 | 0 | 3 | 5 | 0 | 3 | 4 | 1 | 1 | 1 | 94 | 1 | 6 | 249 | 10 | 1 | 15 | 29 | 6 |
| July | 2 | 6 | 19 | 6 | 2 | 1 | 4 | 0 | 1 | 1 | 24 | 2 | 0 | 1 | 2 | 2 | 1 | 0 | 15 | 1 | 3 | 31 | 3 | 2 | 10 | 7 | 2 |
| August | 2 | 2 | 6 | 4 | 2 | 1 | 3 | 0 | 0 | 2 | 2 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 5 | 0 | 6 | 15 | 1 | 0 | 2 | 6 | 2 |
| September | 2 | 3 | 7 | 5 | 1 | 0 | 1 | 0 | 0 | 3 | 1 | 2 | 0 | 4 | 0 | 1 | 0 | 0 | 5 | 11 | 16 | 8 | 1 | 0 | 3 | 2 | 2 |
| October | 5 | 4 | 3 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 3 | 0 | 4 | 5 | 1 | 0 | 1 | 2 | 1 |
| November | 10 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 6 | 0 | 1 | 3 | 0 | 0 | 2 | 1 | 0 |
| December | 151 | 1 | 4 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 2 | 1 | 1 | 7 | 0 | 0 | 5 | 1 | 1 |