| Jahr | Monat | Sichtungen |
|---|---|---|
| 2024 | 11 | 1 |
| 2024 | 4 | 1 |
| 2023 | 12 | 1 |
| 2022 | 3 | 1 |
| 2021 | 6 | 1 |
| 2021 | 5 | 2 |
| 2021 | 3 | 3 |
| 2021 | 2 | 3 |
| 2021 | 1 | 3 |
| 2020 | 11 | 1 |
| 2020 | 10 | 3 |
| 2020 | 9 | 4 |
| 2020 | 8 | 4 |
| 2020 | 7 | 6 |
| 2020 | 6 | 4 |
| 2020 | 5 | 3 |
| 2016 | 1 | 1 |
| 2014 | 9 | 1 |
| 2014 | 8 | 1 |
| 2014 | 7 | 4 |
| 2014 | 6 | 6 |
| 2014 | 5 | 144 
|
| Durchschnitt | 9 | |
| Total | 198 | |