Localities: Østfold
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2024 | 1 | 1 | 1 | 2 |
| 2023 | 5 | 5 | 5 | 5 |
| 2022 | 17 | 6 | 5 | 18 |
| 2021 | 29 | 2 | 2 | 29 |
| 2020 | 49 | 14 | 8 | 73 |
| 2019 | 680 | 19 | 8 | 3900 |
| 2018 | 664 | 16 | 7 | 3080 |
| 2017 | 596 | 17 | 7 | 2794 |
| 2016 | 571 | 17 | 9 | 2374 |
| 2015 | 468 | 20 | 7 | 1950 |
| 2014 | 449 | 23 | 11 | 1701 |
| 2013 | 292 | 15 | 10 | 906 |
| 2012 | 156 | 12 | 7 | 378 |
| 2011 | 93 | 9 | 6 | 204 |
| 2010 | 123 | 7 | 6 | 200 |
| 2009 | 200 | 4 | 3 | 579 |
| 2008 | 4 | 4 | 3 | 5 |
| 2007 | 1 | 1 | 1 | 1 |
| 2006 | 3 | 1 | 1 | 3 |
| 2005 | 2 | 1 | 1 | 2 |
| Totalt alle år | 976 | 101 | 49 | 18204 |