Localities: Trøndelag
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 1992 | 29 | 4 | 1 | 49 |
| 2020 | 77 | 14 | 7 | 132 |
| 2021 | 82 | 17 | 7 | 129 |
| 2019 | 101 | 14 | 10 | 171 |
| 2023 | 48 | 9 | 8 | 131 |
| 2024 | 4 | 1 | 1 | 5 |
| 2022 | 100 | 8 | 6 | 436 |
| 2018 | 69 | 14 | 9 | 104 |
| 1994 | 17 | 3 | 1 | 25 |
| 2007 | 39 | 31 | 17 | 67 |
| 2004 | 4 | 6 | 4 | 6 |
| 2003 | 4 | 3 | 3 | 7 |
| 1995 | 34 | 4 | 1 | 43 |
| 2006 | 5 | 4 | 3 | 7 |
| 2009 | 254 | 109 | 12 | 1504 |
| 2008 | 184 | 57 | 7 | 636 |
| 2011 | 221 | 55 | 15 | 681 |
| 2010 | 269 | 106 | 11 | 1369 |
| 2017 | 127 | 23 | 13 | 260 |
| 2012 | 279 | 58 | 14 | 1293 |
| 2014 | 171 | 27 | 13 | 422 |
| 2016 | 105 | 20 | 8 | 190 |
| 2015 | 175 | 17 | 9 | 457 |
| 2013 | 186 | 24 | 8 | 621 |
| Totalt alle år | 550 | 390 | 88 | 8745 |