| 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 | 71 (Medium) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 23 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 34 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 |
| February | 280 (Very high) | 0 (Low) | 63 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 37 (Medium) | 0 (Low) | 19 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 |
| March | 150 (High) | 329 (Very high) | 21 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 25 (Medium) | 5 (Low) | 421 (Very high) | 1 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 30 (Medium) | 44 |
| April | 10 (Low) | 952 (Very high) | 29 (Low) | 26 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 221 (Very high) | 0 (Low) | 35 (Medium) | 25 (Medium) | 2 (Low) | 298 (Very high) | 15 (Medium) | 2 (Low) | 17 (Medium) | 5 |
| May | 15 (Low) | 54 (Medium) | 389 (Very high) | 105 (Very high) | 136 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 83 (High) | 0 (Low) | 5 (Low) | 459 (Very high) | 119 (Very high) | 0 (Low) | 15 (Medium) | 11 |
| June | 5 (Low) | 2 (Low) | 552 (Very high) | 76 (High) | 227 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 10 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 139 (Very high) | 0 (Low) | 7 (Low) | 223 (Very high) | 46 (Medium) | 0 (Low) | 13 (Low) | 27 |
| July | 0 (Low) | 0 (Low) | 75 (Medium) | 5 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 7 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 8 (Low) | 4 (Low) | 7 (Low) | 0 (Low) | 11 (Low) | 10 |
| August | 0 (Low) | 2 (Low) | 7 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 8 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 25 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 8 |
| September | 2 (Low) | 1 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 13 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 3 |
| October | 30 (Medium) | 2 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 |
| November | 390 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 |
| December | 95 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 |