| 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 | 44 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 19 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 5 |
| February | 1,376 (Very high) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 16 (Medium) | 0 (Low) | 92 (High) | 4 (Low) | 22 (Medium) | 1 (Low) | 1 (Low) | 1 (Low) | 2 (Low) | 7 (Low) | 20 |
| March | 41 (Medium) | 728 (Very high) | 15 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 1 (Low) | 139 (Very high) | 8 (Low) | 38 (Medium) | 48 (Medium) | 1 (Low) | 116 (Very high) | 12 (Low) | 9 (Low) | 26 (Medium) | 602 |
| April | 32 (Medium) | 135 (High) | 31 (Medium) | 14 (Low) | 4 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 183 (Very high) | 1 (Low) | 40 (Medium) | 1 (Low) | 1 (Low) | 155 (Very high) | 23 (Medium) | 2 (Low) | 4 (Low) | 451 |
| May | 16 (Low) | 1 (Low) | 236 (Very high) | 6 (Low) | 375 (High) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 5 (Low) | 18 (Medium) | 33 (Medium) | 0 (Low) | 5 (Low) | 57 |
| June | 18 (Low) | 0 (Low) | 221 (Very high) | 4 (Low) | 656 (Very high) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 8 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 119 (Very high) | 0 (Low) | 28 (Medium) | 16 (Medium) | 17 (Medium) | 0 (Low) | 9 (Low) | 37 |
| July | 1 (Low) | 0 (Low) | 40 (Medium) | 2 (Low) | 8 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 18 (Medium) | 7 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 15 |
| August | 1 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 23 (Medium) | 3 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 6 |
| September | 1 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 12 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 4 |
| October | 33 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| November | 64 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 28 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 3 |
| December | 35 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 |