| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Mugwort | Chestnut | Composites | Hazel | Heather | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 333 (Very high) | 0 (Low) | 15 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 56 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 48 (Medium) | 0 (Low) | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 11 |
| February | 603 (Very high) | 0 (Low) | 55 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 82 (High) | 0 (Low) | 81 (High) | 1 (Low) | 39 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 23 |
| March | 74 (Medium) | 1,952 (Very high) | 9 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 3 (Low) | 3 (Low) | 29 (Medium) | 664 (Very high) | 1 (Low) | 2 (Low) | 1 (Low) | 35 (Medium) | 13 (Low) | 39 |
| April | 11 (Low) | 686 (Very high) | 10 (Low) | 4 (Low) | 3 (Low) | 15 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 36 (Medium) | 1 (Low) | 40 (Medium) | 25 (Medium) | 3 (Low) | 372 (Very high) | 2 (Low) | 8 (Low) | 10 (Low) | 48 |
| May | 18 (Low) | 6 (Low) | 41 (Medium) | 19 (Low) | 150 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 276 (Very high) | 0 (Low) | 3 (Low) | 301 (Very high) | 26 (Medium) | 1 (Low) | 9 (Low) | 27 |
| June | 5 (Low) | 1 (Low) | 26 (Low) | 9 (Low) | 65 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 3 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 103 (Very high) | 0 (Low) | 8 (Low) | 32 (Medium) | 5 (Low) | 0 (Low) | 3 (Low) | 28 |
| July | 2 (Low) | 0 (Low) | 7 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 8 (Low) | 32 (Medium) | 2 (Low) | 0 (Low) | 16 (Medium) | 23 |
| August | 1 (Low) | 0 (Low) | 3 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 23 (Medium) | 3 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 14 |
| September | 1 (Low) | 0 (Low) | 9 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 12 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 13 |
| October | 17 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 4 |
| November | 43 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 3 |
| December | 204 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |