| 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 | 49 (Medium) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| February | 147 (High) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 48 (Medium) | 2 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 8 (Low) | 3 |
| March | 28 (Low) | 819 (Very high) | 24 (Low) | 25 (Medium) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 112 (Very high) | 2 (Low) | 70 (High) | 39 (Medium) | 1 (Low) | 96 (High) | 17 (Medium) | 23 (Medium) | 7 (Low) | 32 |
| April | 3 (Low) | 64 (Medium) | 10 (Low) | 28 (Medium) | 2 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 29 (Medium) | 0 (Low) | 17 (Medium) | 0 (Low) | 1 (Low) | 117 (Very high) | 21 (Medium) | 0 (Low) | 4 (Low) | 54 |
| May | 5 (Low) | 5 (Low) | 205 (Very high) | 57 (High) | 28 (Low) | 0 (Low) | 217 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 11 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 48 (Medium) | 0 (Low) | 10 (Low) | 124 (Very high) | 52 (High) | 0 (Low) | 9 (Low) | 64 |
| June | 5 (Low) | 0 (Low) | 341 (Very high) | 66 (High) | 99 (Medium) | 0 (Low) | 30 (Medium) | 0 (Low) | 0 (Low) | 16 (Medium) | 26 (Medium) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 420 (Very high) | 0 (Low) | 12 (Low) | 211 (Very high) | 146 (Very high) | 0 (Low) | 14 (Low) | 96 |
| July | 1 (Low) | 0 (Low) | 90 (High) | 32 (Medium) | 2 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 23 (Medium) | 63 (High) | 0 (Low) | 1 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 49 (Medium) | 0 (Low) | 14 (Low) | 21 (Medium) | 9 (Low) | 0 (Low) | 8 (Low) | 33 |
| August | 0 (Low) | 0 (Low) | 2 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| September | 0 (Low) | 0 (Low) | 1 (Low) | 1 (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) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 |
| October | 4 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 |
| November | 156 (High) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 |
| December | 86 (Medium) | 0 (Low) | 1 (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) | 0 (Low) | 3 (Low) | 1 |