| 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 | 158 (High) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 22 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| February | 238 (Very high) | 0 (Low) | 31 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 23 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 68 (High) | 0 (Low) | 97 (High) | 1 (Low) | 5 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| March | 443 (Very high) | 852 (Very high) | 23 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 7 (Low) | 33 (Medium) | 3 (Low) | 200 (Very high) | 0 (Low) | 21 (Medium) | 6 (Low) | 2 (Low) | 23 (Medium) | 2 |
| April | 9 (Low) | 795 (Very high) | 70 (Medium) | 34 (Medium) | 6 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 383 (Very high) | 0 (Low) | 16 (Medium) | 20 (Medium) | 2 (Low) | 347 (Very high) | 25 (Medium) | 9 (Low) | 39 (Medium) | 8 |
| May | 16 (Low) | 7 (Low) | 394 (Very high) | 54 (High) | 433 (Very high) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 25 (Medium) | 14 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 126 (Very high) | 0 (Low) | 4 (Low) | 450 (Very high) | 30 (Medium) | 2 (Low) | 8 (Low) | 3 |
| June | 8 (Low) | 2 (Low) | 71 (Medium) | 3 (Low) | 45 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 29 (Medium) | 0 (Low) | 2 (Low) | 29 (Medium) | 4 (Low) | 0 (Low) | 3 (Low) | 3 |
| July | 3 (Low) | 1 (Low) | 7 (Low) | 1 (Low) | 2 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 3 |
| August | 3 (Low) | 2 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 2 (Low) | 10 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 2 |
| September | 1 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |
| October | 79 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 |
| November | 25 (Low) | 0 (Low) | 3 (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) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 |
| December | 5 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |