Localities: Akershus
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2022 | 31 | 15 | 11 | 45 |
| 2024 | 5 | 4 | 4 | 8 |
| 2021 | 34 | 15 | 11 | 40 |
| 2023 | 25 | 12 | 9 | 38 |
| 2020 | 75 | 24 | 17 | 121 |
| 2002 | 1 | 1 | 1 | 1 |
| 2018 | 165 | 24 | 15 | 260 |
| 2013 | 259 | 18 | 8 | 857 |
| 2017 | 205 | 25 | 17 | 355 |
| 2003 | 3 | 2 | 2 | 3 |
| 2014 | 173 | 32 | 20 | 594 |
| 2019 | 107 | 20 | 13 | 180 |
| 2016 | 282 | 28 | 16 | 546 |
| 2004 | 1 | 1 | 1 | 2 |
| 2005 | 5 | 2 | 2 | 6 |
| 2011 | 642 | 34 | 20 | 3863 |
| 2007 | 125 | 14 | 9 | 170 |
| 2008 | 63 | 7 | 7 | 108 |
| 2010 | 68 | 15 | 10 | 91 |
| 2006 | 19 | 6 | 3 | 24 |
| 2009 | 20 | 12 | 8 | 33 |
| 2012 | 339 | 18 | 9 | 1228 |
| 2015 | 155 | 20 | 12 | 434 |
| Totalt alle år | 890 | 180 | 105 | 9007 |