Location: Sevheim
| Year | Arter/grupper | Participants | Observations |
|---|---|---|---|
| 1989 | 10 | 1 | 10 |
| 1991 | 33 | 1 | 34 |
| 1992 | 51 | 1 | 68 |
| 1993 | 10 | 1 | 10 |
| 1994 | 3 | 1 | 3 |
| 1995 | 16 | 1 | 17 |
| 1996 | 8 | 1 | 10 |
| 1997 | 1 | 1 | 1 |
| 1998 | 1 | 1 | 1 |
| 2000 | 2 | 1 | 2 |
| 2007 | 5 | 1 | 5 |
| 2009 | 11 | 1 | 13 |
| 2011 | 84 | 1 | 186 |
| 2012 | 2 | 1 | 2 |
| 2013 | 70 | 1 | 146 |
| 2014 | 9 | 1 | 9 |
| 2015 | 4 | 1 | 4 |
| 2016 | 1 | 1 | 1 |
| 2022 | 34 | 1 | 66 |
| 2023 | 21 | 1 | 36 |
| 2024 | 1 | 1 | 1 |
| Totalt alle år | 179 | 1 | 625 |