| 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 | 942 (Very high) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 40 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 |
| February | 1,100 (Very high) | 3 (Low) | 17 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 76 (High) | 0 (Low) | 657 (Very high) | 3 (Low) | 66 (High) | 1 (Low) | 0 (Low) | 1 (Low) | 11 (Low) | 5 (Low) | 17 |
| March | 1,012 (Very high) | 228 (High) | 39 (Medium) | 3 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 6 (Low) | 1 (Low) | 3 (Low) | 2,178 (Very high) | 15 (Medium) | 190 (Very high) | 288 (Very high) | 1 (Low) | 254 (Very high) | 22 (Medium) | 10 (Low) | 26 (Medium) | 58 |
| April | 26 (Low) | 135 (High) | 26 (Low) | 19 (Low) | 4 (Low) | 17 (Medium) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 1,267 (Very high) | 0 (Low) | 57 (High) | 3 (Low) | 7 (Low) | 717 (Very high) | 15 (Medium) | 13 (Low) | 26 (Medium) | 72 |
| May | 38 (Medium) | 1 (Low) | 373 (Very high) | 23 (Medium) | 480 (Very high) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 7 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 60 (High) | 0 (Low) | 7 (Low) | 108 (Very high) | 18 (Medium) | 0 (Low) | 13 (Low) | 68 |
| June | 18 (Low) | 1 (Low) | 218 (Very high) | 30 (Medium) | 211 (High) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 11 (Low) | 0 (Low) | 3 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 258 (Very high) | 0 (Low) | 9 (Low) | 20 (Medium) | 18 (Medium) | 0 (Low) | 14 (Low) | 109 |
| July | 4 (Low) | 0 (Low) | 43 (Medium) | 4 (Low) | 13 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 27 (Medium) | 8 (Low) | 0 (Low) | 1 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 15 (Medium) | 1 (Low) | 3 (Low) | 0 (Low) | 8 (Low) | 31 |
| August | 1 (Low) | 1 (Low) | 7 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 14 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 20 |
| September | 3 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 17 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 8 |
| October | 90 (High) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 7 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 8 |
| November | 31 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 7 |
| December | 73 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 8 |