| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| January | 858 (Very high) | 0 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 41 (Medium) | 0 (Low) | 29 (Medium) | 1 (Low) | 1 (Low) | 3 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 2 |
| February | 978 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 31 (Medium) | 0 (Low) | 262 (Very high) | 6 (Low) | 89 (High) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 1 |
| March | 1,494 (Very high) | 929 (Very high) | 18 (Low) | 3 (Low) | 10 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 31 (Medium) | 46 (Medium) | 13 (Low) | 123 (Very high) | 217 (Very high) | 0 (Low) | 66 (High) | 3 (Low) | 6 (Low) | 16 (Medium) | 93 |
| April | 8 (Low) | 1,139 (Very high) | 29 (Low) | 35 (Medium) | 11 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 12 (Low) | 1 (Low) | 1 (Low) | 219 (Very high) | 2 (Low) | 52 (High) | 12 (Low) | 5 (Low) | 187 (Very high) | 12 (Low) | 3 (Low) | 15 (Medium) | 1,636 |
| May | 18 (Low) | 13 (Low) | 172 (Very high) | 62 (High) | 189 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 41 (Medium) | 0 (Low) | 66 (High) | 0 (Low) | 9 (Low) | 165 (Very high) | 23 (Medium) | 2 (Low) | 21 (Medium) | 301 |
| June | 21 (Low) | 30 (Medium) | 168 (Very high) | 31 (Medium) | 133 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 7 (Low) | 0 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 4 (Low) | 123 (Very high) | 0 (Low) | 23 (Medium) | 96 (High) | 51 (High) | 0 (Low) | 16 (Medium) | 72 |
| July | 2 (Low) | 0 (Low) | 63 (Medium) | 4 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 19 (Medium) | 3 (Low) | 0 (Low) | 1 (Low) | 7 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 22 (Medium) | 8 (Low) | 6 (Low) | 0 (Low) | 2 (Low) | 12 |
| August | 1 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 29 (Medium) | 3 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 9 |
| September | 1 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 30 (Medium) | 4 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 7 |
| October | 43 (Medium) | 0 (Low) | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 7 |
| November | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 10 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 |
| December | 151 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |