| Month | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
| January | 0 | 0 | 0 | 0 | 37 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 3 |
| February | 0 | 0 | 0 | 0 | 14 | 5 | 1 | 1 | 1 | 0 | 0 | 89 | 0 | 513 | 1 | 350 | 0 | 0 | 2 | 41 | 2 | 8 |
| March | 2 | 0 | 7 | 0 | 1 | 33 | 1 | 1 | 1 | 5 | 0 | 3 | 323 | 5 | 110 | 137 | 9 | 1 | 13 | 27 | 10 | 29 |
| April | 36 | 8 | 8 | 0 | 1 | 4 | 0 | 3 | 0 | 3 | 1 | 5 | 451 | 2 | 33 | 8 | 313 | 9 | 7 | 30 | 17 | 38 |
| May | 110 | 909 | 3 | 0 | 1 | 0 | 0 | 9 | 0 | 23 | 1 | 1 | 9 | 0 | 75 | 0 | 887 | 28 | 3 | 21 | 17 | 50 |
| June | 11 | 376 | 0 | 2 | 0 | 0 | 0 | 8 | 0 | 7 | 1 | 0 | 1 | 0 | 151 | 0 | 84 | 8 | 0 | 11 | 12 | 27 |
| July | 13 | 5 | 0 | 5 | 0 | 0 | 1 | 5 | 0 | 1 | 1 | 0 | 1 | 0 | 8 | 0 | 6 | 2 | 0 | 16 | 30 | 24 |
| August | 3 | 2 | 0 | 2 | 0 | 0 | 2 | 7 | 0 | 1 | 1 | 1 | 0 | 0 | 3 | 0 | 5 | 1 | 0 | 3 | 18 | 23 |
| September | 1 | 1 | 0 | 0 | 0 | 0 | 5 | 2 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 1 | 0 | 7 | 3 | 8 |
| October | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 14 | 0 | 4 | 0 | 0 | 7 | 3 | 6 |
| November | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 2 | 0 | 1 | 0 | 1 | 0 | 1 | 5 | 0 | 1 | 0 | 0 | 6 | 1 | 3 |
| December | 0 | 0 | 0 | 0 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 36 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 21 | 1 | 5 |