| 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 | 1,164 (Very high) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 38 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 81 (High) | 0 (Low) | 127 (Very high) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 |
| February | 1,142 (Very high) | 0 (Low) | 16 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 68 (High) | 0 (Low) | 324 (Very high) | 1 (Low) | 202 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 5 (Low) | 4 (Low) | 4 |
| March | 542 (Very high) | 484 (Very high) | 15 (Low) | 6 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 3 (Low) | 1 (Low) | 17 (Medium) | 29 (Medium) | 4 (Low) | 39 (Medium) | 2,241 (Very high) | 1 (Low) | 13 (Low) | 1 (Low) | 22 (Medium) | 11 (Low) | 27 |
| April | 13 (Low) | 1,246 (Very high) | 22 (Low) | 60 (High) | 7 (Low) | 16 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 8 (Low) | 9 (Low) | 0 (Low) | 2 (Low) | 43 (Medium) | 1 (Low) | 56 (High) | 103 (Very high) | 5 (Low) | 1,508 (Very high) | 18 (Medium) | 9 (Low) | 26 (Medium) | 22 |
| May | 15 (Low) | 3 (Low) | 97 (High) | 78 (High) | 169 (Medium) | 1 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 1,128 (Very high) | 0 (Low) | 6 (Low) | 936 (Very high) | 34 (Medium) | 1 (Low) | 23 (Medium) | 18 |
| June | 106 (High) | 73 (Medium) | 144 (High) | 149 (Very high) | 126 (Medium) | 0 (Low) | 34 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 24 (Medium) | 8 (Low) | 0 (Low) | 10 (Low) | 3 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 281 (Very high) | 9 (Low) | 11 (Low) | 250 (Very high) | 67 (High) | 0 (Low) | 26 (Medium) | 66 |
| July | 38 (Medium) | 0 (Low) | 191 (Very high) | 48 (Medium) | 6 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 35 (Medium) | 6 (Low) | 1 (Low) | 2 (Low) | 21 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 31 (Medium) | 0 (Low) | 7 (Low) | 12 (Low) | 12 (Low) | 1 (Low) | 5 (Low) | 21 |
| August | 7 (Low) | 3 (Low) | 8 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 19 (Medium) | 8 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 5 |
| September | 1 (Low) | 0 (Low) | 7 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 1 (Low) | 18 (Medium) | 3 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 3 |
| October | 5 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 |
| November | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 |
| December | 95 (High) | 0 (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) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 |