| 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 | 733 (Very high) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 131 (Very high) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 7 |
| February | 1,475 (Very high) | 0 (Low) | 18 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 87 (High) | 0 (Low) | 259 (Very high) | 2 (Low) | 121 (Very high) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 14 (Low) | 12 |
| March | 165 (High) | 212 (High) | 12 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 2,229 (Very high) | 9 (Low) | 17 (Medium) | 269 (Very high) | 2 (Low) | 62 (High) | 1 (Low) | 40 (Medium) | 47 (Medium) | 146 |
| April | 55 (Medium) | 13 (Low) | 10 (Low) | 28 (Medium) | 95 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 7 (Low) | 1 (Low) | 0 (Low) | 18 (Medium) | 5 (Low) | 43 (Medium) | 2 (Low) | 5 (Low) | 561 (Very high) | 2 (Low) | 5 (Low) | 7 (Low) | 42 |
| May | 24 (Low) | 0 (Low) | 100 (High) | 61 (High) | 304 (High) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 9 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 22 (Medium) | 0 (Low) | 7 (Low) | 282 (Very high) | 9 (Low) | 0 (Low) | 11 (Low) | 72 |
| June | 3 (Low) | 0 (Low) | 117 (High) | 79 (High) | 35 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 10 (Low) | 0 (Low) | 1 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 9 (Low) | 6 (Low) | 25 (Medium) | 0 (Low) | 14 (Low) | 44 |
| July | 1 (Low) | 0 (Low) | 44 (Medium) | 13 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 13 (Low) | 33 |
| August | 1 (Low) | 0 (Low) | 13 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 67 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 19 |
| September | 3 (Low) | 0 (Low) | 5 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 26 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 11 |
| October | 36 (Medium) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 8 |
| November | 19 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 7 |
| December | 13 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 3 |