| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 229 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 116 (Very high) | 0 (Low) | 36 (Medium) | 6 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 1 |
| February | 72 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 43 (Medium) | 0 (Low) | 13 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 |
| March | 145 (High) | 9 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 14 (Low) | 1 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 5 |
| April | 14 (Low) | 6 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 3 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 12 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 16 |
| May | 1 (Low) | 1 (Low) | 5 (Low) | 3 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 2 (Low) | 73 (High) | 2 (Low) | 1 (Low) | 53 (High) | 33 |
| June | 18 (Low) | 0 (Low) | 177 (Very high) | 36 (Medium) | 35 (Low) | 2 (Low) | 34 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 6 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 293 (Very high) | 0 (Low) | 11 (Low) | 120 (Very high) | 74 (High) | 0 (Low) | 6 (Low) | 17 |
| July | 3 (Low) | 0 (Low) | 417 (Very high) | 15 (Low) | 12 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 14 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 27 (Medium) | 0 (Low) | 5 (Low) | 38 (Medium) | 26 (Medium) | 0 (Low) | 2 (Low) | 15 |
| August | 2 (Low) | 1 (Low) | 17 (Low) | 5 (Low) | 2 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 2 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 10 (Low) | 15 (Medium) | 1 (Low) | 0 (Low) | 2 (Low) | 5 |
| September | 5 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 3 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 |
| October | 11 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 43 (Medium) | 0 (Low) | 1 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 |
| November | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 26 (Medium) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 |
| December | 87 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 |