| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 690 (Very high) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 39 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 |
| February | 618 (Very high) | 0 (Low) | 15 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 24 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 105 (Very high) | 0 (Low) | 172 (Very high) | 1 (Low) | 193 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 9 (Low) | 5 |
| March | 301 (Very high) | 297 (High) | 9 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 11 (Low) | 21 (Medium) | 5 (Low) | 34 (Medium) | 166 (Very high) | 1 (Low) | 42 (Medium) | 2 (Low) | 18 (Medium) | 15 (Medium) | 24 |
| April | 22 (Low) | 19 (Low) | 8 (Low) | 33 (Medium) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 20 (Medium) | 2 (Low) | 5 (Low) | 1 (Low) | 4 (Low) | 486 (Very high) | 10 (Low) | 3 (Low) | 11 (Low) | 13 |
| May | 14 (Low) | 0 (Low) | 627 (Very high) | 78 (High) | 161 (Medium) | 0 (Low) | 17 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 6 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 120 (Very high) | 0 (Low) | 7 (Low) | 619 (Very high) | 94 (High) | 0 (Low) | 11 (Low) | 36 |
| June | 12 (Low) | 0 (Low) | 325 (Very high) | 51 (High) | 374 (High) | 0 (Low) | 65 (High) | 0 (Low) | 0 (Low) | 4 (Low) | 15 (Medium) | 3 (Low) | 10 (Low) | 40 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 103 (Very high) | 0 (Low) | 9 (Low) | 480 (Very high) | 14 (Low) | 0 (Low) | 8 (Low) | 28 |
| July | 2 (Low) | 0 (Low) | 17 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 10 (Low) | 0 (Low) | 1 (Low) | 37 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 5 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 7 |
| August | 2 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 |
| September | 3 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 6 |
| October | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 |
| November | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| December | 45 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |