| 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 | 754 | 0 | 3 | 0 | 0 | 0 | 0 | 5 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 42 | 0 | 13 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 |
| February | 167 | 0 | 3 | 0 | 0 | 0 | 0 | 4 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 34 | 1 | 49 | 1 | 18 | 0 | 3 | 1 | 0 | 12 | 1 | 1 |
| March | 537 | 256 | 6 | 1 | 0 | 5 | 0 | 6 | 13 | 1 | 0 | 1 | 0 | 1 | 1 | 26 | 108 | 37 | 52 | 468 | 1 | 26 | 1 | 7 | 9 | 4 | 7 |
| April | 31 | 366 | 11 | 36 | 16 | 5 | 0 | 0 | 258 | 0 | 0 | 1 | 1 | 2 | 1 | 5 | 729 | 5 | 115 | 6 | 5 | 433 | 9 | 7 | 11 | 8 | 3 |
| May | 32 | 4 | 250 | 47 | 205 | 2 | 0 | 0 | 92 | 0 | 3 | 5 | 0 | 5 | 1 | 0 | 9 | 0 | 51 | 1 | 4 | 673 | 7 | 3 | 6 | 7 | 5 |
| June | 38 | 1 | 49 | 17 | 42 | 0 | 5 | 0 | 16 | 0 | 26 | 10 | 0 | 4 | 1 | 0 | 1 | 0 | 62 | 0 | 5 | 54 | 5 | 0 | 11 | 9 | 3 |
| July | 2 | 0 | 37 | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 26 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 6 | 15 | 2 | 0 | 7 | 21 | 7 |
| August | 1 | 0 | 6 | 2 | 1 | 0 | 0 | 0 | 0 | 7 | 21 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 18 | 7 | 1 | 0 | 4 | 50 | 1 |
| September | 1 | 0 | 7 | 1 | 1 | 0 | 1 | 0 | 0 | 4 | 1 | 2 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 15 | 8 | 1 | 0 | 2 | 7 | 1 |
| October | 7 | 0 | 4 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 3 | 3 | 1 | 0 | 2 | 2 | 2 |
| November | 42 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 1 | 2 | 0 | 0 | 5 | 0 | 1 |
| December | 279 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 2 | 0 | 0 | 7 | 0 | 3 |