Klasse: Grønnalger (Chlorophyceae)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2024 | 2 | 2 | 2 | 4 |
| 2023 | 3 | 1 | 1 | 5 |
| 2022 | 4 | 2 | 2 | 11 |
| 2021 | 5 | 5 | 5 | 37 |
| 2020 | 5 | 9 | 7 | 45 |
| 2019 | 5 | 13 | 9 | 66 |
| 2018 | 7 | 8 | 7 | 39 |
| 2017 | 5 | 12 | 10 | 47 |
| 2016 | 6 | 14 | 12 | 85 |
| 2015 | 7 | 13 | 11 | 80 |
| 2014 | 6 | 20 | 14 | 56 |
| 2013 | 5 | 12 | 10 | 37 |
| 2012 | 3 | 2 | 2 | 3 |
| 2010 | 4 | 4 | 4 | 5 |
| 2009 | 2 | 2 | 2 | 4 |
| 2008 | 5 | 4 | 4 | 16 |
| 2007 | 7 | 6 | 5 | 18 |
| 2006 | 4 | 3 | 3 | 9 |
| 2005 | 5 | 3 | 3 | 6 |
| 2004 | 7 | 5 | 11 | 33 |
| 2003 | 7 | 4 | 4 | 26 |
| 2002 | 4 | 6 | 8 | 14 |
| 2001 | 5 | 4 | 4 | 12 |
| 2000 | 5 | 5 | 5 | 11 |
| 1999 | 7 | 6 | 6 | 16 |
| 1998 | 5 | 4 | 4 | 6 |
| 1997 | 4 | 4 | 4 | 9 |
| 1996 | 33 | 12 | 14 | 60 |
| 1994 | 71 | 40 | 38 | 168 |
| 1993 | 80 | 41 | 42 | 183 |
| 1992 | 9 | 4 | 4 | 12 |
| 1991 | 93 | 52 | 52 | 287 |
| 1990 | 140 | 69 | 70 | 550 |
| 1989 | 119 | 80 | 83 | 430 |
| Totalt alle år | 255 | 254 | 222 | 2390 |