| 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 | 1,165 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 30 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 50 (High) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 |
| February | 1,041 (Very high) | 1 (Low) | 42 (Medium) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 77 (High) | 0 (Low) | 146 (Very high) | 1 (Low) | 61 (High) | 1 (Low) | 3 (Low) | 3 (Low) | 5 (Low) | 8 (Low) | 2 |
| March | 292 (Very high) | 932 (Very high) | 30 (Medium) | 4 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 5 (Low) | 1 (Low) | 11 (Low) | 7 (Low) | 7 (Low) | 60 (High) | 817 (Very high) | 0 (Low) | 235 (Very high) | 22 (Medium) | 10 (Low) | 27 (Medium) | 64 |
| April | 23 (Low) | 1,158 (Very high) | 26 (Low) | 34 (Medium) | 3 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 23 (Medium) | 2 (Low) | 55 (High) | 7 (Low) | 1 (Low) | 836 (Very high) | 22 (Medium) | 5 (Low) | 27 (Medium) | 66 |
| May | 33 (Medium) | 10 (Low) | 264 (Very high) | 47 (Medium) | 266 (High) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 7 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 465 (Very high) | 0 (Low) | 4 (Low) | 238 (Very high) | 36 (Medium) | 1 (Low) | 14 (Low) | 36 |
| June | 26 (Low) | 11 (Low) | 347 (Very high) | 44 (Medium) | 227 (High) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 10 (Low) | 0 (Low) | 5 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 173 (Very high) | 0 (Low) | 5 (Low) | 67 (High) | 42 (Medium) | 0 (Low) | 16 (Medium) | 48 |
| July | 5 (Low) | 3 (Low) | 38 (Medium) | 6 (Low) | 6 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 8 (Low) | 3 (Low) | 4 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 8 (Low) | 12 (Low) | 3 (Low) | 0 (Low) | 4 (Low) | 17 |
| August | 1 (Low) | 1 (Low) | 7 (Low) | 3 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 7 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 20 (Medium) | 5 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 16 |
| September | 1 (Low) | 0 (Low) | 6 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 16 (Medium) | 3 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 6 |
| October | 68 (Medium) | 1 (Low) | 9 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 4 |
| November | 37 (Medium) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 4 |
| December | 50 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |