| Month | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 231 (Very high) | 1 (Low) | 147 (Very high) | 2 (Low) | 1 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 | 0 |
| February | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 114 (Very high) | 1 (Low) | 101 (Very high) | 2 (Low) | 24 (Medium) | 5 (Low) | 0 (Low) | 1 (Low) | 15 (Medium) | 0 | 0 |
| March | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 4 (Low) | 9 (Low) | 13 (Low) | 12 (Low) | 66 (High) | 19 (Medium) | 1 (Low) | 2 (Low) | 11 (Low) | 2 | 1 |
| April | 24 (Medium) | 6 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 75 (High) | 4 (Low) | 33 (Medium) | 34 (Medium) | 156 (Very high) | 7 (Low) | 15 (Medium) | 48 (Medium) | 13 | 1 |
| May | 78 (High) | 376 (High) | 17 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 13 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 114 (Very high) | 2 (Low) | 736 (Very high) | 43 (Medium) | 1 (Low) | 22 (Medium) | 2 | 1 |
| June | 9 (Low) | 48 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 50 (High) | 0 (Low) | 184 (Very high) | 11 (Low) | 0 (Low) | 4 (Low) | 4 | 2 |
| July | 2 (Low) | 4 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 31 (Medium) | 2 (Low) | 0 (Low) | 4 (Low) | 0 | 2 |
| August | 0 (Low) | 2 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |
| September | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |
| October | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |
| November | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 0 |
| December | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 | 0 |