| Jahr | Monat | Sichtungen |
|---|---|---|
| 2023 | 8 | 1 |
| 2023 | 7 | 1 |
| 2023 | 3 | 5 |
| 2022 | 11 | 4 |
| 2022 | 10 | 44 |
| 2022 | 8 | 1 |
| 2022 | 7 | 1 |
| 2022 | 6 | 1 |
| 2022 | 4 | 2 |
| 2021 | 2 | 1 |
| 2020 | 11 | 23 |
| 2018 | 4 | 1 |
| 2018 | 3 | 17 |
| 2017 | 7 | 6 |
| 2017 | 3 | 6 |
| 2017 | 2 | 18 |
| 2016 | 11 | 1 |
| 2016 | 10 | 3 |
| 2016 | 8 | 123 |
| 2016 | 7 | 1 |
| 2016 | 6 | 23 |
| 2016 | 3 | 64 |
| 2016 | 2 | 322 |
| 2016 | 1 | 245 |
| 2015 | 12 | 6 |
| 2015 | 10 | 7 |
| 2015 | 9 | 16 |
| 2015 | 8 | 46 |
| 2015 | 7 | 587 
|
| 2015 | 6 | 86 |
| 2015 | 5 | 18 |
| 2015 | 4 | 19 |
| 2015 | 3 | 71 |
| Durchschnitt | 54 | |
| Total | 1770 | |
