Localities: Trøndelag
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2021 | 80 | 17 | 7 | 127 |
| 1992 | 29 | 4 | 1 | 49 |
| 2020 | 76 | 14 | 7 | 131 |
| 2019 | 98 | 12 | 8 | 167 |
| 2023 | 47 | 9 | 8 | 130 |
| 2022 | 94 | 8 | 6 | 416 |
| 2024 | 4 | 1 | 1 | 4 |
| 2018 | 68 | 14 | 9 | 103 |
| 2007 | 37 | 29 | 17 | 64 |
| 2003 | 3 | 3 | 3 | 3 |
| 1994 | 16 | 3 | 1 | 24 |
| 2004 | 4 | 6 | 4 | 6 |
| 2006 | 5 | 4 | 3 | 7 |
| 2009 | 242 | 109 | 12 | 1427 |
| 2008 | 174 | 56 | 7 | 620 |
| 1995 | 34 | 4 | 1 | 43 |
| 2011 | 212 | 55 | 15 | 655 |
| 2010 | 257 | 105 | 11 | 1318 |
| 2012 | 268 | 57 | 13 | 1256 |
| 2017 | 125 | 23 | 13 | 252 |
| 2014 | 168 | 27 | 13 | 416 |
| 2013 | 179 | 24 | 8 | 606 |
| 2015 | 170 | 17 | 9 | 445 |
| 2016 | 103 | 19 | 7 | 187 |
| Totalt alle år | 522 | 384 | 84 | 8456 |