| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Am | Oak | Sorrel | Willow | Nettle | Unidentified |
| January | 24 | 0 | 3 | 0 | 0 | 0 | 1 | 8 | 0 | 0 | 0 | 2 | 0 | 0 | 16 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
| February | 105 | 0 | 3 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 11 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
| March | 98 | 58 | 3 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 8 | 1 | 9 | 0 | 0 | 0 | 1 | 1 | 1 |
| April | 3 | 222 | 5 | 8 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 7 | 0 | 4 | 3 | 0 | 38 | 1 | 0 | 1 | 43 |
| May | 2 | 1 | 17 | 11 | 134 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 4 | 0 | 5 | 0 | 2 | 151 | 4 | 2 | 2 | 42 |
| June | 19 | 9 | 37 | 21 | 106 | 1 | 6 | 0 | 0 | 14 | 6 | 0 | 4 | 12 | 4 | 5 | 0 | 58 | 26 | 10 | 99 | 31 | 1 | 12 | 18 |
| July | 6 | 0 | 11 | 1 | 3 | 0 | 12 | 0 | 5 | 18 | 3 | 0 | 1 | 10 | 2 | 0 | 0 | 6 | 0 | 12 | 14 | 2 | 0 | 6 | 22 |
| August | 1 | 0 | 4 | 2 | 1 | 0 | 0 | 0 | 5 | 4 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 25 | 8 | 1 | 0 | 2 | 8 |
| September | 1 | 0 | 8 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 8 | 0 | 29 | 6 | 0 | 0 | 2 | 2 |
| October | 15 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 13 | 3 | 0 | 0 | 1 | 2 |
| November | 9 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 1 |
| December | 6 | 0 | 5 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 |