| 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 | 555 (Very high) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 25 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 23 (Medium) | 0 (Low) | 12 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 |
| February | 645 (Very high) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 33 (Medium) | 0 (Low) | 55 (High) | 18 (Medium) | 86 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 6 (Low) | 2 |
| March | 210 (Very high) | 387 (Very high) | 17 (Low) | 8 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 24 (Medium) | 2 (Low) | 159 (Very high) | 275 (Very high) | 0 (Low) | 245 (Very high) | 11 (Low) | 21 (Medium) | 18 (Medium) | 33 |
| April | 22 (Low) | 35 (Medium) | 25 (Low) | 89 (High) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 40 (Medium) | 1 (Low) | 21 (Medium) | 0 (Low) | 1 (Low) | 804 (Very high) | 14 (Low) | 13 (Low) | 7 (Low) | 44 |
| May | 16 (Low) | 0 (Low) | 164 (Very high) | 73 (High) | 241 (High) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 188 (Very high) | 0 (Low) | 6 (Low) | 279 (Very high) | 50 (High) | 2 (Low) | 14 (Low) | 36 |
| June | 17 (Low) | 0 (Low) | 391 (Very high) | 64 (High) | 222 (High) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 16 (Medium) | 0 (Low) | 8 (Low) | 34 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 703 (Very high) | 0 (Low) | 14 (Low) | 177 (Very high) | 93 (High) | 0 (Low) | 20 (Medium) | 41 |
| July | 2 (Low) | 0 (Low) | 85 (High) | 6 (Low) | 15 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 12 (Low) | 17 (Medium) | 0 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 27 (Medium) | 0 (Low) | 5 (Low) | 24 (Medium) | 4 (Low) | 0 (Low) | 5 (Low) | 21 |
| August | 1 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 15 (Medium) | 3 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 5 |
| September | 2 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 19 (Medium) | 2 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 3 |
| October | 12 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |
| November | 46 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 18 |
| December | 111 (High) | 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) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 9 |