| 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 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 0 | 2 | 1 | 0 | 2 | 0 | 3 |
| February | 0 | 0 | 0 | 0 | 12 | 1 | 0 | 3 | 1 | 0 | 0 | 10 | 3 | 332 | 2 | 19 | 4 | 3 | 0 | 8 | 4 | 6 |
| March | 1 | 3 | 1 | 0 | 1 | 162 | 1 | 2 | 0 | 8 | 0 | 6 | 315 | 9 | 89 | 36 | 40 | 14 | 1 | 16 | 11 | 12 |
| April | 51 | 34 | 10 | 0 | 0 | 50 | 0 | 9 | 0 | 7 | 0 | 6 | 341 | 2 | 76 | 6 | 504 | 12 | 2 | 10 | 32 | 11 |
| May | 85 | 697 | 9 | 207 | 0 | 225 | 0 | 21 | 0 | 25 | 2 | 0 | 29 | 0 | 58 | 0 | 494 | 41 | 12 | 19 | 119 | 17 |
| June | 27 | 340 | 6 | 4 | 1 | 4 | 0 | 13 | 0 | 8 | 3 | 0 | 3 | 0 | 95 | 0 | 61 | 12 | 5 | 11 | 25 | 7 |
| July | 4 | 5 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | 2 | 1 | 0 | 1 | 0 | 2 | 0 | 16 | 3 | 0 | 7 | 6 | 10 |
| August | 2 | 1 | 0 | 0 | 1 | 0 | 2 | 3 | 0 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 4 | 1 | 0 | 4 | 2 | 8 |
| September | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 5 | 1 | 0 | 2 | 1 | 5 |
| October | 1 | 0 | 0 | 0 | 0 | 0 | 7 | 1 | 0 | 16 | 0 | 1 | 0 | 0 | 2 | 0 | 6 | 2 | 0 | 4 | 1 | 4 |
| November | 0 | 0 | 0 | 0 | 0 | 0 | 20 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 3 | 0 | 0 | 8 | 0 | 4 |
| December | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 1 | 0 | 0 | 0 | 7 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 6 | 0 | 3 |