| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 2,716 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 237 (Very high) | 0 (Low) | 22 (Medium) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 1 |
| February | 4,777 (Very high) | 0 (Low) | 18 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 205 (Very high) | 0 (Low) | 203 (Very high) | 2 (Low) | 286 (Very high) | 0 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 2 (Low) | 3 | 1 |
| March | 1,768 (Very high) | 5 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 1 (Low) | 35 (Medium) | 15 (Medium) | 138 (Very high) | 2 (Low) | 2 (Low) | 3 (Low) | 22 (Medium) | 3 (Low) | 6 | 1 |
| April | 37 (Medium) | 186 (High) | 32 (Medium) | 8 (Low) | 12 (Low) | 29 (Medium) | 0 (Low) | 2 (Low) | 165 (Very high) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 512 (Very high) | 2 (Low) | 99 (High) | 3 (Low) | 1 (Low) | 1,556 (Very high) | 15 (Medium) | 10 (Low) | 21 (Medium) | 12 | 2 |
| May | 17 (Low) | 1 (Low) | 171 (Very high) | 42 (Medium) | 193 (Medium) | 1 (Low) | 11 (Low) | 0 (Low) | 190 (Very high) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 8 (Low) | 2 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 401 (Very high) | 0 (Low) | 4 (Low) | 1,765 (Very high) | 54 (High) | 2 (Low) | 15 (Medium) | 167 | 5 |
| June | 4 (Low) | 0 (Low) | 142 (High) | 32 (Medium) | 16 (Low) | 4 (Low) | 8 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 18 (Medium) | 4 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 199 (Very high) | 0 (Low) | 2 (Low) | 25 (Medium) | 188 (Very high) | 0 (Low) | 10 (Low) | 15 | 3 |
| July | 2 (Low) | 0 (Low) | 47 (Medium) | 7 (Low) | 2 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 11 (Low) | 20 (Medium) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 5 (Low) | 22 (Medium) | 6 (Low) | 0 (Low) | 3 (Low) | 12 | 3 |
| August | 2 (Low) | 0 (Low) | 14 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 6 (Low) | 11 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 | 2 |
| September | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 | 1 |
| October | 2 (Low) | 0 (Low) | 3 (Low) | 1 (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) | 22 (Medium) | 0 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 | 1 |
| November | 34 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 1 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 | 1 |
| December | 59 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 2 |