| 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 | 732 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 32 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 |
| February | 1,406 (Very high) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 88 (High) | 0 (Low) | 125 (Very high) | 9 (Low) | 359 (Very high) | 0 (Low) | 0 (Low) | 2 (Low) | 6 (Low) | 3 (Low) | 7 |
| March | 79 (Medium) | 292 (High) | 10 (Low) | 3 (Low) | 1 (Low) | 10 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 42 (Medium) | 8 (Low) | 22 (Medium) | 179 (Very high) | 0 (Low) | 52 (High) | 1 (Low) | 18 (Medium) | 25 (Medium) | 29 |
| April | 87 (Medium) | 19 (Low) | 17 (Low) | 31 (Medium) | 129 (Medium) | 7 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 25 (Medium) | 5 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 5 (Low) | 85 (High) | 8 (Low) | 2 (Low) | 928 (Very high) | 6 (Low) | 11 (Low) | 21 (Medium) | 39 |
| May | 22 (Low) | 0 (Low) | 199 (Very high) | 99 (High) | 749 (Very high) | 1 (Low) | 14 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 7 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 114 (Very high) | 0 (Low) | 17 (Medium) | 238 (Very high) | 14 (Low) | 0 (Low) | 4 (Low) | 25 |
| June | 4 (Low) | 0 (Low) | 121 (High) | 75 (High) | 5 (Low) | 0 (Low) | 28 (Medium) | 0 (Low) | 0 (Low) | 13 (Low) | 10 (Low) | 0 (Low) | 1 (Low) | 166 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 28 (Medium) | 14 (Low) | 28 (Medium) | 0 (Low) | 10 (Low) | 26 |
| July | 1 (Low) | 0 (Low) | 38 (Medium) | 9 (Low) | 1 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 1 (Low) | 7 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 28 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 11 (Low) | 7 (Low) | 6 (Low) | 0 (Low) | 8 (Low) | 12 |
| August | 2 (Low) | 0 (Low) | 12 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 45 (Medium) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 4 |
| September | 2 (Low) | 0 (Low) | 10 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 24 (Medium) | 3 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 8 |
| October | 5 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 |
| November | 5 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 3 |
| December | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 |