| 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 | 399 (Very high) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 18 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |
| February | 458 (Very high) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 29 (Medium) | 0 (Low) | 389 (Very high) | 2 (Low) | 50 (High) | 0 (Low) | 1 (Low) | 1 (Low) | 3 (Low) | 5 (Low) | 4 |
| March | 643 (Very high) | 6,652 (Very high) | 8 (Low) | 2 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 9 (Low) | 18 (Medium) | 82 (High) | 71 (High) | 250 (Very high) | 0 (Low) | 91 (High) | 1 (Low) | 9 (Low) | 12 (Low) | 36 |
| April | 11 (Low) | 9,886 (Very high) | 10 (Low) | 45 (Medium) | 10 (Low) | 6 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 5 (Low) | 390 (Very high) | 1 (Low) | 300 (Very high) | 49 (Medium) | 2 (Low) | 495 (Very high) | 5 (Low) | 61 (High) | 35 (Medium) | 75 |
| May | 39 (Medium) | 1 (Low) | 150 (High) | 58 (High) | 495 (Very high) | 2 (Low) | 33 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 584 (Very high) | 0 (Low) | 4 (Low) | 362 (Very high) | 31 (Medium) | 5 (Low) | 15 (Medium) | 86 |
| June | 128 (High) | 0 (Low) | 97 (High) | 22 (Medium) | 160 (Medium) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 6 (Low) | 5 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 71 (High) | 0 (Low) | 12 (Low) | 124 (Very high) | 20 (Medium) | 0 (Low) | 14 (Low) | 28 |
| July | 2 (Low) | 0 (Low) | 23 (Low) | 5 (Low) | 6 (Low) | 0 (Low) | 38 (Medium) | 0 (Low) | 1 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 9 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 9 (Low) | 17 |
| August | 1 (Low) | 0 (Low) | 8 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 30 (Medium) | 5 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 6 |
| September | 2 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 27 (Medium) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 5 |
| October | 4 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 |
| November | 22 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (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) | 1 |
| December | 49 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 2 |