| 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 | 358 | 0 | 5 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 81 | 0 | 4 | 1 | 0 | 0 | 1 | 0 | 0 | 5 | 0 | 7 |
| February | 199 | 0 | 3 | 0 | 0 | 1 | 0 | 7 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 56 | 0 | 40 | 1 | 17 | 0 | 1 | 0 | 0 | 5 | 0 | 4 |
| March | 234 | 382 | 6 | 1 | 0 | 1 | 0 | 3 | 21 | 0 | 0 | 0 | 0 | 4 | 0 | 7 | 3 | 43 | 68 | 254 | 0 | 7 | 3 | 9 | 21 | 3 | 4 |
| April | 9 | 245 | 5 | 28 | 0 | 12 | 0 | 1 | 22 | 0 | 0 | 2 | 1 | 1 | 1 | 5 | 269 | 3 | 136 | 43 | 1 | 104 | 5 | 17 | 33 | 8 | 18 |
| May | 4 | 11 | 73 | 32 | 80 | 6 | 1 | 0 | 1 | 0 | 0 | 5 | 1 | 7 | 0 | 0 | 14 | 1 | 50 | 0 | 2 | 198 | 13 | 1 | 7 | 13 | 12 |
| June | 9 | 0 | 77 | 14 | 113 | 1 | 12 | 0 | 0 | 0 | 2 | 6 | 1 | 4 | 1 | 0 | 1 | 0 | 84 | 0 | 4 | 50 | 6 | 0 | 8 | 9 | 31 |
| July | 2 | 0 | 23 | 2 | 17 | 0 | 5 | 0 | 0 | 0 | 9 | 5 | 0 | 1 | 3 | 1 | 0 | 0 | 7 | 0 | 10 | 11 | 1 | 0 | 5 | 5 | 23 |
| August | 1 | 0 | 9 | 2 | 3 | 0 | 3 | 0 | 0 | 4 | 6 | 4 | 0 | 1 | 1 | 0 | 0 | 0 | 5 | 0 | 17 | 6 | 1 | 0 | 1 | 2 | 19 |
| September | 1 | 0 | 7 | 1 | 0 | 0 | 4 | 0 | 0 | 5 | 0 | 3 | 1 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 25 | 4 | 1 | 0 | 0 | 1 | 22 |
| October | 15 | 0 | 5 | 1 | 1 | 0 | 2 | 0 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 12 | 0 | 5 | 3 | 1 | 0 | 0 | 0 | 14 |
| November | 18 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 7 |
| December | 29 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 0 | 2 | 0 | 4 |