| 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 | 426 (Very high) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 54 (High) | 0 (Low) | 3 (Low) | 1 (Low) | 11 (Low) | 1 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 11 |
| February | 3,952 (Very high) | 0 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 72 (High) | 3 (Low) | 134 (Very high) | 2 (Low) | 218 (Very high) | 0 (Low) | 3 (Low) | 24 (Medium) | 4 (Low) | 11 (Low) | 14 |
| March | 181 (High) | 4,936 (Very high) | 47 (Medium) | 14 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 47 (Medium) | 24 (Medium) | 240 (Very high) | 340 (Very high) | 2 (Low) | 141 (Very high) | 8 (Low) | 445 (Very high) | 17 (Medium) | 151 |
| April | 14 (Low) | 312 (Very high) | 21 (Low) | 70 (High) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 2 (Low) | 48 (Medium) | 4 (Low) | 3 (Low) | 3,091 (Very high) | 27 (Medium) | 10 (Low) | 4 (Low) | 255 |
| May | 17 (Low) | 12 (Low) | 124 (High) | 67 (High) | 315 (High) | 6 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 271 (Very high) | 0 (Low) | 7 (Low) | 308 (Very high) | 85 (High) | 0 (Low) | 10 (Low) | 48 |
| June | 18 (Low) | 0 (Low) | 372 (Very high) | 61 (High) | 105 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 480 (Very high) | 0 (Low) | 9 (Low) | 386 (Very high) | 121 (Very high) | 0 (Low) | 18 (Medium) | 24 |
| July | 10 (Low) | 0 (Low) | 150 (High) | 17 (Low) | 9 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 41 (Medium) | 0 (Low) | 10 (Low) | 32 (Medium) | 5 (Low) | 0 (Low) | 3 (Low) | 21 |
| August | 5 (Low) | 0 (Low) | 11 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 21 (Medium) | 7 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 5 |
| September | 3 (Low) | 0 (Low) | 9 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 11 (Low) | 9 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 4 |
| October | 26 (Low) | 0 (Low) | 9 (Low) | 1 (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) | 7 (Low) | 0 (Low) | 2 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 3 |
| November | 135 (High) | 0 (Low) | 8 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 30 (Medium) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 6 |
| December | 218 (Very high) | 0 (Low) | 5 (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) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 5 |