| 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 | 311 (Very high) | 0 (Low) | 16 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 47 (Medium) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 |
| February | 451 (Very high) | 0 (Low) | 43 (Medium) | 0 (Low) | 28 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 83 (High) | 0 (Low) | 113 (Very high) | 1 (Low) | 95 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 19 (Medium) | 1 |
| March | 107 (High) | 1,831 (Very high) | 26 (Low) | 9 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 132 (Very high) | 14 (Low) | 86 (High) | 267 (Very high) | 1 (Low) | 393 (Very high) | 3 (Low) | 4 (Low) | 22 (Medium) | 43 |
| April | 10 (Low) | 183 (High) | 24 (Low) | 105 (Very high) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 7 (Low) | 0 (Low) | 43 (Medium) | 2 (Low) | 12 (Low) | 1,129 (Very high) | 52 (High) | 1 (Low) | 14 (Low) | 5 |
| May | 5 (Low) | 1 (Low) | 136 (High) | 109 (Very high) | 194 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 119 (Very high) | 0 (Low) | 7 (Low) | 178 (Very high) | 84 (High) | 4 (Low) | 8 (Low) | 8 |
| June | 7 (Low) | 0 (Low) | 324 (Very high) | 81 (High) | 122 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 11 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 465 (Very high) | 0 (Low) | 4 (Low) | 210 (Very high) | 142 (Very high) | 0 (Low) | 17 (Medium) | 20 |
| July | 2 (Low) | 0 (Low) | 110 (High) | 10 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 14 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 47 (Medium) | 0 (Low) | 6 (Low) | 15 (Medium) | 8 (Low) | 0 (Low) | 6 (Low) | 14 |
| August | 0 (Low) | 0 (Low) | 5 (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) | 2 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 |
| September | 3 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 3 |
| October | 7 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 |
| November | 28 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 |
| December | 128 (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) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 |