| 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 | 941 (Very high) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 34 (Medium) | 0 (Low) | 7 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 4 |
| February | 1,024 (Very high) | 0 (Low) | 19 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 207 (Very high) | 1 (Low) | 108 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 20 (Medium) | 16 |
| March | 460 (Very high) | 471 (Very high) | 30 (Medium) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 2,311 (Very high) | 9 (Low) | 168 (Very high) | 228 (Very high) | 1 (Low) | 187 (Very high) | 5 (Low) | 29 (Medium) | 34 (Medium) | 99 |
| April | 34 (Medium) | 24 (Low) | 26 (Low) | 91 (High) | 5 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 0 (Low) | 168 (Very high) | 3 (Low) | 49 (Medium) | 1 (Low) | 5 (Low) | 582 (Very high) | 21 (Medium) | 3 (Low) | 17 (Medium) | 94 |
| May | 8 (Low) | 1 (Low) | 257 (Very high) | 135 (Very high) | 174 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 9 (Low) | 0 (Low) | 13 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 103 (Very high) | 0 (Low) | 8 (Low) | 327 (Very high) | 84 (High) | 4 (Low) | 13 (Low) | 113 |
| June | 9 (Low) | 0 (Low) | 339 (Very high) | 156 (Very high) | 209 (High) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 21 (Medium) | 0 (Low) | 14 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 600 (Very high) | 0 (Low) | 11 (Low) | 233 (Very high) | 156 (Very high) | 0 (Low) | 18 (Medium) | 115 |
| July | 2 (Low) | 0 (Low) | 81 (Medium) | 9 (Low) | 3 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 24 (Medium) | 0 (Low) | 1 (Low) | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 13 (Low) | 4 (Low) | 6 (Low) | 0 (Low) | 10 (Low) | 52 |
| August | 3 (Low) | 0 (Low) | 16 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 31 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 22 |
| September | 2 (Low) | 0 (Low) | 7 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 2 (Low) | 30 (Medium) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 19 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 16 |
| October | 24 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 7 |
| November | 158 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 6 |
| December | 91 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 4 |