| 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) | 18 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 550 (Very high) | 1 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 | 1 |
| February | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 14 (Low) | 1 (Low) | 0 (Low) | 648 (Very high) | 10 (Low) | 189 (Very high) | 3 (Low) | 5 (Low) | 3 (Low) | 2 (Low) | 6 (Low) | 20 (Medium) | 2 | 2 |
| March | 4 (Low) | 2 (Low) | 7 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 45 (Medium) | 17 (Medium) | 115 (Very high) | 55 (High) | 129 (Very high) | 19 (Medium) | 4 (Low) | 27 (Medium) | 9 (Low) | 6 | 7 |
| April | 24 (Medium) | 5 (Low) | 12 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 8 (Low) | 15 (Medium) | 1 (Low) | 75 (High) | 14 (Low) | 362 (Very high) | 5 (Low) | 4 (Low) | 8 (Low) | 6 | 7 |
| May | 206 (Very high) | 283 (High) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 23 (Medium) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 2,736 (Very high) | 0 (Low) | 1,770 (Very high) | 76 (High) | 0 (Low) | 9 (Low) | 10 | 7 |
| June | 132 (Very high) | 153 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 580 (Very high) | 1 (Low) | 175 (Very high) | 48 (Medium) | 0 (Low) | 27 (Medium) | 18 | 4 |
| July | 94 (High) | 4 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 8 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 45 (Medium) | 8 (Low) | 0 (Low) | 10 (Low) | 6 | 3 |
| August | 6 (Low) | 4 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 23 (Medium) | 2 (Low) | 0 (Low) | 3 (Low) | 6 | 1 |
| September | 5 (Low) | 10 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 2 | 2 |
| October | 2 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 12 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 1 | 1 |
| November | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 | 0 |
| December | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 106 (Very high) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 | 8 |