| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 299 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 3 |
| February | 1,738 (Very high) | 0 (Low) | 13 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 132 (Very high) | 0 (Low) | 139 (Very high) | 3 (Low) | 131 (Very high) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 7 (Low) | 6 |
| March | 454 (Very high) | 1,770 (Very high) | 9 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 11 (Low) | 16 (Medium) | 5 (Low) | 92 (High) | 0 (Low) | 1 (Low) | 4 (Low) | 5 (Low) | 32 (Medium) | 25 |
| April | 45 (Medium) | 987 (Very high) | 11 (Low) | 19 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 27 (Medium) | 3 (Low) | 40 (Medium) | 6 (Low) | 1 (Low) | 370 (Very high) | 3 (Low) | 7 (Low) | 20 (Medium) | 47 |
| May | 33 (Medium) | 13 (Low) | 810 (Very high) | 75 (High) | 199 (Medium) | 1 (Low) | 24 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 27 (Medium) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 83 (High) | 0 (Low) | 7 (Low) | 1,365 (Very high) | 35 (Medium) | 0 (Low) | 18 (Medium) | 101 |
| June | 50 (Medium) | 2 (Low) | 223 (Very high) | 21 (Medium) | 215 (High) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 27 (Medium) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 119 (Very high) | 0 (Low) | 11 (Low) | 128 (Very high) | 25 (Medium) | 0 (Low) | 7 (Low) | 61 |
| July | 7 (Low) | 0 (Low) | 36 (Medium) | 3 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 13 (Low) | 3 (Low) | 1 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 14 (Low) | 9 (Low) | 4 (Low) | 0 (Low) | 14 (Low) | 221 |
| August | 3 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 33 (Medium) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 8 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 126 |
| September | 5 (Low) | 0 (Low) | 5 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 8 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 10 |
| October | 34 (Medium) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 6 |
| November | 281 (Very high) | 0 (Low) | 3 (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) | 0 (Low) | 2 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 6 |
| December | 431 (Very high) | 0 (Low) | 2 (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) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |