| Jahr | Monat | Sichtungen |
|---|---|---|
| 2012 | 8 | 82 |
| 2012 | 7 | 35 |
| 2012 | 6 | 49 |
| 2012 | 5 | 99 |
| 2012 | 4 | 53 |
| 2012 | 3 | 48 |
| 2012 | 2 | 55 |
| 2012 | 1 | 36 |
| 2011 | 12 | 22 |
| 2011 | 11 | 49 |
| 2011 | 10 | 42 |
| 2011 | 9 | 86 |
| 2011 | 8 | 50 |
| 2011 | 7 | 38 |
| 2011 | 6 | 35 |
| 2011 | 5 | 63 |
| 2011 | 4 | 34 |
| 2011 | 3 | 58 |
| 2011 | 2 | 21 |
| Average | / Monat | 50.2631578947 |
| Total | - | 955 |