| 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 | 798 | 0 | 8 | 1 | 0 | 0 | 0 | 23 | 9 | 0 | 0 | 1 | 0 | 0 | 0 | 45 | 0 | 5 | 1 | 0 | 0 | 2 | 1 | 0 | 5 | 1 | 1 |
| February | 336 | 0 | 6 | 0 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 96 | 0 | 82 | 2 | 9 | 0 | 1 | 0 | 1 | 12 | 1 | 1 |
| March | 453 | 2 | 7 | 1 | 0 | 1 | 0 | 14 | 5 | 0 | 0 | 0 | 1 | 3 | 1 | 3 | 8 | 31 | 9 | 570 | 0 | 32 | 3 | 2 | 12 | 14 | 2 |
| April | 10 | 313 | 16 | 15 | 5 | 9 | 0 | 0 | 18 | 0 | 0 | 1 | 0 | 4 | 1 | 1 | 651 | 1 | 175 | 16 | 3 | 111 | 10 | 26 | 9 | 18 | 4 |
| May | 13 | 16 | 131 | 54 | 77 | 5 | 1 | 0 | 27 | 0 | 3 | 11 | 0 | 8 | 1 | 0 | 14 | 0 | 36 | 1 | 23 | 108 | 15 | 4 | 1 | 27 | 5 |
| June | 34 | 2 | 133 | 19 | 456 | 1 | 4 | 0 | 4 | 1 | 5 | 11 | 0 | 5 | 1 | 0 | 4 | 1 | 78 | 0 | 4 | 45 | 12 | 1 | 10 | 25 | 5 |
| July | 29 | 2 | 94 | 10 | 112 | 1 | 44 | 0 | 0 | 1 | 9 | 5 | 1 | 5 | 4 | 0 | 0 | 0 | 52 | 0 | 6 | 18 | 3 | 0 | 13 | 10 | 19 |
| August | 1 | 1 | 4 | 3 | 6 | 0 | 1 | 0 | 0 | 1 | 9 | 2 | 0 | 1 | 1 | 0 | 1 | 0 | 4 | 0 | 12 | 2 | 1 | 0 | 4 | 43 | 2 |
| September | 6 | 1 | 4 | 4 | 5 | 0 | 1 | 0 | 0 | 4 | 5 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 3 | 0 | 25 | 5 | 1 | 0 | 2 | 6 | 1 |
| October | 26 | 1 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 1 | 1 | 0 | 1 | 1 | 1 |
| November | 3 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 |
| December | 17 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 |