| 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) | 36 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 | 1 |
| February | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 82 (High) | 0 (Low) | 1,037 (Very high) | 11 (Low) | 337 (Very high) | 4 (Low) | 0 (Low) | 5 (Low) | 20 (Medium) | 3 | 7 |
| March | 3 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 25 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 4 (Low) | 1,350 (Very high) | 5 (Low) | 381 (Very high) | 162 (Very high) | 23 (Medium) | 5 (Low) | 17 (Medium) | 51 (High) | 13 | 24 |
| April | 34 (Medium) | 7 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 2 (Low) | 824 (Very high) | 4 (Low) | 143 (Very high) | 16 (Medium) | 495 (Very high) | 6 (Low) | 13 (Low) | 34 (Medium) | 13 | 9 |
| May | 85 (High) | 706 (Very high) | 3 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 8 (Low) | 0 (Low) | 28 (Medium) | 1 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 125 (Very high) | 1 (Low) | 966 (Very high) | 24 (Medium) | 1 (Low) | 32 (Medium) | 32 | 22 |
| June | 20 (Medium) | 323 (High) | 1 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 13 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 364 (Very high) | 0 (Low) | 99 (High) | 9 (Low) | 0 (Low) | 26 (Medium) | 19 | 10 |
| July | 6 (Low) | 2 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 5 | 3 |
| August | 3 (Low) | 4 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 7 (Low) | 6 | 2 |
| September | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 2 | 1 |
| October | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 2 | 1 |
| November | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 1 | 1 |
| December | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 2 | 1 |