| 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 | 50 (Medium) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 |
| February | 323 (Very high) | 0 (Low) | 8 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 53 (High) | 0 (Low) | 153 (Very high) | 1 (Low) | 6 (Low) | 1 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 5 (Low) | 2 |
| March | 1,439 (Very high) | 520 (Very high) | 22 (Low) | 10 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 23 (Medium) | 19 (Medium) | 85 (High) | 6 (Low) | 539 (Very high) | 1 (Low) | 19 (Medium) | 4 (Low) | 4 (Low) | 40 (Medium) | 40 |
| April | 14 (Low) | 3,757 (Very high) | 34 (Medium) | 30 (Medium) | 3 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 360 (Very high) | 3 (Low) | 38 (Medium) | 69 (High) | 2 (Low) | 261 (Very high) | 14 (Low) | 6 (Low) | 30 (Medium) | 198 |
| May | 7 (Low) | 5 (Low) | 341 (Very high) | 62 (High) | 307 (High) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 10 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 16 (Medium) | 0 (Low) | 44 (Medium) | 0 (Low) | 8 (Low) | 288 (Very high) | 32 (Medium) | 0 (Low) | 47 (Medium) | 79 |
| June | 5 (Low) | 1 (Low) | 36 (Medium) | 4 (Low) | 53 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 7 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 31 (Medium) | 2 (Low) | 12 (Low) | 16 (Medium) | 4 (Low) | 0 (Low) | 5 (Low) | 15 |
| July | 1 (Low) | 0 (Low) | 14 (Low) | 4 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 22 (Medium) | 5 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 12 |
| August | 1 (Low) | 0 (Low) | 6 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 33 (Medium) | 5 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 6 |
| September | 1 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 35 (Medium) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 8 |
| October | 104 (High) | 0 (Low) | 7 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 4 |
| November | 57 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 4 |
| December | 17 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 3 |