| Jahr | Monat | Sichtungen |
|---|---|---|
| 2024 | 12 | 1 |
| 2024 | 3 | 153 |
| 2024 | 2 | 443 
|
| 2019 | 9 | 1 |
| 2019 | 3 | 2 |
| 2019 | 1 | 130 |
| 2018 | 11 | 1 |
| 2018 | 10 | 1 |
| 2018 | 9 | 2 |
| 2018 | 8 | 16 |
| 2018 | 7 | 4 |
| 2018 | 3 | 1 |
| 2017 | 10 | 32 |
| 2017 | 9 | 2 |
| 2017 | 7 | 1 |
| 2017 | 5 | 1 |
| 2017 | 3 | 40 |
| 2017 | 1 | 12 |
| 2016 | 12 | 19 |
| 2016 | 11 | 108 |
| 2016 | 10 | 126 |
| 2016 | 3 | 2 |
| 2016 | 2 | 100 |
| 2016 | 1 | 19 |
| 2015 | 12 | 110 |
| 2015 | 11 | 4 |
| 2015 | 10 | 67 |
| 2015 | 9 | 66 |
| 2015 | 8 | 44 |
| Durchschnitt | 52 | |
| Total | 1508 | |