| Month | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 46 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 82 (High) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 | 2 |
| February | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 6 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 410 (Very high) | 0 (Low) | 243 (Very high) | 4 (Low) | 134 (Very high) | 4 (Low) | 1 (Low) | 4 (Low) | 33 (Medium) | 4 | 2 |
| March | 4 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 1 (Low) | 28 (Medium) | 0 (Low) | 1 (Low) | 1 (Low) | 6 (Low) | 1 (Low) | 13 (Low) | 62 (High) | 8 (Low) | 43 (Medium) | 121 (Very high) | 25 (Medium) | 6 (Low) | 11 (Low) | 28 (Medium) | 10 | 4 |
| April | 43 (Medium) | 6 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 8 (Low) | 39 (Medium) | 4 (Low) | 34 (Medium) | 11 (Low) | 860 (Very high) | 12 (Low) | 9 (Low) | 21 (Medium) | 21 | 18 |
| May | 120 (Very high) | 517 (Very high) | 6 (Low) | 10 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 29 (Medium) | 1 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 262 (Very high) | 2 (Low) | 2,273 (Very high) | 76 (High) | 6 (Low) | 16 (Medium) | 27 | 9 |
| June | 19 (Low) | 176 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 335 (Very high) | 0 (Low) | 97 (High) | 25 (Medium) | 0 (Low) | 19 (Medium) | 23 | 8 |
| July | 21 (Medium) | 5 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 9 (Low) | 4 (Low) | 1 (Low) | 14 (Low) | 9 | 8 |
| August | 3 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 8 | 8 |
| September | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 4 | 6 |
| October | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 2 | 3 |
| November | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 | 5 |
| December | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 55 (High) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 1 | 2 |