| 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 | 1,715 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 20 (Medium) | 2 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 |
| February | 1,039 (Very high) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 28 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 78 (High) | 1 (Low) | 592 (Very high) | 2 (Low) | 14 (Low) | 1 (Low) | 2 (Low) | 4 (Low) | 10 (Low) | 1 (Low) | 3 |
| March | 324 (Very high) | 100 (High) | 11 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 13 (Low) | 271 (Very high) | 149 (Very high) | 6 (Low) | 102 (Very high) | 0 (Low) | 6 (Low) | 6 (Low) | 13 (Low) | 18 (Medium) | 26 |
| April | 13 (Low) | 462 (Very high) | 25 (Low) | 32 (Medium) | 2 (Low) | 3 (Low) | 11 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 9 (Low) | 2,138 (Very high) | 3 (Low) | 17 (Medium) | 64 (High) | 1 (Low) | 340 (Very high) | 7 (Low) | 59 (High) | 20 (Medium) | 40 |
| May | 35 (Medium) | 3 (Low) | 160 (Very high) | 43 (Medium) | 796 (Very high) | 2 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 6 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 26 (Medium) | 0 (Low) | 18 (Medium) | 1 (Low) | 8 (Low) | 312 (Very high) | 23 (Medium) | 0 (Low) | 5 (Low) | 22 |
| June | 81 (Medium) | 0 (Low) | 111 (High) | 30 (Medium) | 171 (Medium) | 0 (Low) | 124 (Very high) | 0 (Low) | 0 (Low) | 41 (Medium) | 8 (Low) | 0 (Low) | 13 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 93 (High) | 0 (Low) | 15 (Medium) | 161 (Very high) | 29 (Medium) | 0 (Low) | 15 (Medium) | 25 |
| July | 7 (Low) | 0 (Low) | 17 (Low) | 5 (Low) | 12 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 3 (Low) | 0 (Low) | 1 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 16 (Medium) | 11 (Low) | 3 (Low) | 0 (Low) | 6 (Low) | 9 |
| August | 0 (Low) | 0 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 9 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 18 |
| September | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 |
| October | 64 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 6 |
| November | 18 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 5 |
| December | 47 (Medium) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 2 |