| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Am | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
| January | 974 | 0 | 13 | 0 | 0 | 0 | 0 | 35 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 168 | 0 | 4 | 1 | 0 | 1 | 8 | 0 | 0 | 11 | 1 | 3 |
| February | 888 | 0 | 18 | 0 | 0 | 0 | 0 | 31 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 257 | 0 | 35 | 1 | 4 | 0 | 3 | 0 | 4 | 18 | 5 | 3 |
| March | 366 | 3 | 11 | 1 | 0 | 0 | 0 | 13 | 13 | 0 | 0 | 1 | 1 | 2 | 1 | 19 | 0 | 19 | 7 | 50 | 0 | 8 | 6 | 16 | 23 | 5 | 5 |
| April | 13 | 977 | 15 | 31 | 2 | 11 | 0 | 1 | 10 | 0 | 3 | 1 | 0 | 5 | 1 | 7 | 14 | 1 | 15 | 44 | 3 | 115 | 12 | 28 | 31 | 16 | 13 |
| May | 18 | 71 | 325 | 90 | 65 | 7 | 1 | 1 | 2 | 0 | 4 | 10 | 0 | 6 | 0 | 0 | 7 | 0 | 126 | 1 | 2 | 622 | 46 | 73 | 9 | 32 | 25 |
| June | 94 | 36 | 407 | 37 | 377 | 1 | 2 | 1 | 0 | 0 | 3 | 16 | 0 | 6 | 1 | 0 | 1 | 0 | 565 | 0 | 4 | 127 | 35 | 2 | 17 | 38 | 38 |
| July | 78 | 4 | 129 | 8 | 55 | 0 | 2 | 0 | 0 | 0 | 12 | 10 | 1 | 3 | 1 | 0 | 0 | 0 | 102 | 0 | 13 | 14 | 9 | 1 | 21 | 14 | 15 |
| August | 2 | 2 | 10 | 2 | 7 | 1 | 1 | 0 | 0 | 3 | 3 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 9 | 0 | 12 | 4 | 2 | 2 | 8 | 6 | 7 |
| September | 8 | 9 | 9 | 2 | 6 | 0 | 1 | 0 | 0 | 10 | 2 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 3 | 0 | 20 | 4 | 1 | 0 | 5 | 4 | 8 |
| October | 42 | 1 | 3 | 1 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 3 | 0 | 1 | 5 | 1 | 1 | 2 | 2 | 4 |
| November | 4 | 3 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 6 | 0 | 1 | 3 | 1 | 0 | 1 | 1 | 5 |
| December | 27 | 0 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | 0 | 1 | 1 | 2 |