| 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 | 950 (Very high) | 0 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 18 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 344 (Very high) | 0 (Low) | 64 (High) | 1 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 |
| February | 157 (High) | 1 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 37 (Medium) | 0 (Low) | 32 (Medium) | 1 (Low) | 14 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 2 |
| March | 230 (Very high) | 698 (Very high) | 4 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 12 (Low) | 3 (Low) | 14 (Low) | 6 (Low) | 816 (Very high) | 0 (Low) | 2 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 2 |
| April | 5 (Low) | 1,690 (Very high) | 3 (Low) | 23 (Medium) | 9 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 46 (Medium) | 9 (Low) | 1 (Low) | 476 (Very high) | 6 (Low) | 1 (Low) | 7 (Low) | 42 |
| May | 2 (Low) | 5 (Low) | 47 (Medium) | 36 (Medium) | 49 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 37 (Medium) | 0 (Low) | 2 (Low) | 191 (Very high) | 17 (Medium) | 1 (Low) | 3 (Low) | 68 |
| June | 5 (Low) | 1 (Low) | 56 (Medium) | 9 (Low) | 14 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 4 (Low) | 12 (Low) | 7 (Low) | 1 (Low) | 7 (Low) | 24 |
| July | 4 (Low) | 2 (Low) | 294 (Very high) | 18 (Low) | 6 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 26 (Medium) | 8 (Low) | 0 (Low) | 1 (Low) | 12 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 4 (Low) | 21 (Medium) | 8 (Low) | 0 (Low) | 13 (Low) | 11 |
| August | 1 (Low) | 1 (Low) | 12 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 14 |
| September | 1 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 |
| October | 2 (Low) | 1 (Low) | 2 (Low) | 0 (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) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |
| November | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (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) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| December | 3 (Low) | 0 (Low) | 0 (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) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 |