| Year | Atlantic species | Boreal species | Lusitanian species | Unknown biogeographical affinity | Area |
|---|---|---|---|---|---|
| 1965 | Skagerrak-Kattegat IIIa | ||||
| 1966 | Skagerrak-Kattegat IIIa | ||||
| 1967 | 3 | 16 | 7 | 0 | Skagerrak-Kattegat IIIa |
| 1968 | 5 | 21 | 11 | 4 | Skagerrak-Kattegat IIIa |
| 1970 | 1 | 13 | 5 | 0 | Skagerrak-Kattegat IIIa |
| 1971 | 1 | 4 | 1 | 0 | Skagerrak-Kattegat IIIa |
| 1972 | 4 | 24 | 12 | 1 | Skagerrak-Kattegat IIIa |
| 1973 | 3 | 17 | 12 | 2 | Skagerrak-Kattegat IIIa |
| 1974 | 2 | 16 | 13 | 0 | Skagerrak-Kattegat IIIa |
| 1975 | 3 | 18 | 8 | 0 | Skagerrak-Kattegat IIIa |
| 1976 | 6 | 20 | 17 | 3 | Skagerrak-Kattegat IIIa |
| 1977 | 3 | 21 | 14 | 1 | Skagerrak-Kattegat IIIa |
| 1978 | 5 | 18 | 13 | 1 | Skagerrak-Kattegat IIIa |
| 1979 | 2 | 17 | 14 | 2 | Skagerrak-Kattegat IIIa |
| 1980 | 6 | 19 | 16 | 1 | Skagerrak-Kattegat IIIa |
| 1981 | 2 | 19 | 14 | 3 | Skagerrak-Kattegat IIIa |
| 1982 | 6 | 23 | 17 | 1 | Skagerrak-Kattegat IIIa |
| 1983 | 2 | 21 | 14 | 0 | Skagerrak-Kattegat IIIa |
| 1984 | 5 | 21 | 17 | 0 | Skagerrak-Kattegat IIIa |
| 1985 | 4 | 19 | 16 | 1 | Skagerrak-Kattegat IIIa |
| 1986 | 5 | 23 | 17 | 0 | Skagerrak-Kattegat IIIa |
| 1987 | 6 | 24 | 16 | 0 | Skagerrak-Kattegat IIIa |
| 1988 | 5 | 18 | 14 | 0 | Skagerrak-Kattegat IIIa |
| 1989 | 3 | 21 | 12 | 0 | Skagerrak-Kattegat IIIa |
| 1990 | 3 | 22 | 16 | 0 | Skagerrak-Kattegat IIIa |
| 1991 | 6 | 24 | 22 | 1 | Skagerrak-Kattegat IIIa |
| 1992 | 5 | 23 | 20 | 0 | Skagerrak-Kattegat IIIa |
| 1993 | 4 | 30 | 20 | 2 | Skagerrak-Kattegat IIIa |
| 1994 | 5 | 27 | 18 | 1 | Skagerrak-Kattegat IIIa |
| 1995 | 5 | 27 | 20 | 2 | Skagerrak-Kattegat IIIa |
| 1996 | 7 | 27 | 23 | 1 | Skagerrak-Kattegat IIIa |
| 1997 | 7 | 29 | 22 | 1 | Skagerrak-Kattegat IIIa |
| 1998 | 6 | 29 | 25 | 1 | Skagerrak-Kattegat IIIa |
| 1999 | 7 | 29 | 23 | 2 | Skagerrak-Kattegat IIIa |
| 2000 | 5 | 30 | 28 | 1 | Skagerrak-Kattegat IIIa |
| 2001 | 7 | 28 | 23 | 1 | Skagerrak-Kattegat IIIa |
| 2002 | 4 | 31 | 23 | 2 | Skagerrak-Kattegat IIIa |
| 2003 | 5 | 27 | 26 | 1 | Skagerrak-Kattegat IIIa |
| 2004 | 6 | 29 | 29 | 2 | Skagerrak-Kattegat IIIa |
| 2005 | 5 | 31 | 33 | 1 | Skagerrak-Kattegat IIIa |
| 2006 | 5 | 26 | 29 | 1 | Skagerrak-Kattegat IIIa |
| 2007 | 4 | 32 | 31 | 3 | Skagerrak-Kattegat IIIa |
| 2008 | 4 | 27 | 32 | 4 | Skagerrak-Kattegat IIIa |
| 2009 | 5 | 26 | 34 | 2 | Skagerrak-Kattegat IIIa |
| 2010 | 4 | 23 | 24 | 3 | Skagerrak-Kattegat IIIa |
| 2011 | 5 | 22 | 22 | 1 | Skagerrak-Kattegat IIIa |
| 2012 | 4 | 31 | 28 | 1 | Skagerrak-Kattegat IIIa |
| 2013 | 7 | 26 | 29 | 2 | Skagerrak-Kattegat IIIa |
| 2014 | 6 | 30 | 32 | 2 | Skagerrak-Kattegat IIIa |
| 2015 | 7 | 32 | 36 | 2 | Skagerrak-Kattegat IIIa |
| 2016 | 6 | 24 | 28 | 2 | Skagerrak-Kattegat IIIa |
| 1965 | S North sea IVc | ||||
| 1966 | 0 | 7 | 10 | 3 | S North sea IVc |
| 1967 | 1 | 6 | 9 | 1 | S North sea IVc |
| 1968 | 0 | 7 | 11 | 0 | S North sea IVc |
| 1969 | 0 | 12 | 15 | 5 | S North sea IVc |
| 1970 | 1 | 11 | 13 | 4 | S North sea IVc |
| 1971 | 1 | 6 | 11 | 2 | S North sea IVc |
| 1972 | 1 | 10 | 10 | 2 | S North sea IVc |
| 1973 | 2 | 7 | 15 | 0 | S North sea IVc |
| 1974 | 1 | 9 | 18 | 3 | S North sea IVc |
| 1975 | 1 | 9 | 19 | 6 | S North sea IVc |
| 1976 | 1 | 12 | 19 | 2 | S North sea IVc |
| 1977 | 1 | 14 | 17 | 7 | S North sea IVc |
| 1978 | 1 | 11 | 18 | 6 | S North sea IVc |
| 1979 | 1 | 11 | 12 | 2 | S North sea IVc |
| 1980 | 2 | 12 | 14 | 2 | S North sea IVc |
| 1981 | 2 | 11 | 15 | 3 | S North sea IVc |
| 1982 | 0 | 12 | 14 | 2 | S North sea IVc |
| 1983 | 2 | 19 | 14 | 3 | S North sea IVc |
| 1984 | 2 | 22 | 20 | 3 | S North sea IVc |
| 1985 | 2 | 17 | 17 | 3 | S North sea IVc |
| 1986 | 2 | 20 | 15 | 3 | S North sea IVc |
| 1987 | 1 | 17 | 15 | 3 | S North sea IVc |
| 1988 | 1 | 16 | 16 | 6 | S North sea IVc |
| 1989 | 1 | 13 | 18 | 5 | S North sea IVc |
| 1990 | 2 | 15 | 25 | 6 | S North sea IVc |
| 1991 | 1 | 19 | 31 | 6 | S North sea IVc |
| 1992 | 1 | 18 | 22 | 4 | S North sea IVc |
| 1993 | 1 | 15 | 22 | 4 | S North sea IVc |
| 1994 | 1 | 17 | 24 | 3 | S North sea IVc |
| 1995 | 1 | 19 | 27 | 4 | S North sea IVc |
| 1996 | 1 | 17 | 24 | 6 | S North sea IVc |
| 1997 | 2 | 20 | 25 | 4 | S North sea IVc |
| 1998 | 2 | 17 | 27 | 3 | S North sea IVc |
| 1999 | 1 | 20 | 20 | 2 | S North sea IVc |
| 2000 | 1 | 19 | 27 | 5 | S North sea IVc |
| 2001 | 2 | 20 | 31 | 4 | S North sea IVc |
| 2002 | 2 | 21 | 32 | 5 | S North sea IVc |
| 2003 | 2 | 23 | 40 | 5 | S North sea IVc |
| 2004 | 1 | 17 | 34 | 6 | S North sea IVc |
| 2005 | 2 | 18 | 37 | 8 | S North sea IVc |
| 2006 | 1 | 20 | 33 | 6 | S North sea IVc |
| 2007 | 1 | 18 | 33 | 5 | S North sea IVc |
| 2008 | 3 | 20 | 32 | 5 | S North sea IVc |
| 2009 | 3 | 16 | 30 | 4 | S North sea IVc |
| 2010 | 2 | 19 | 36 | 4 | S North sea IVc |
| 2011 | 1 | 20 | 32 | 4 | S North sea IVc |
| 2012 | 0 | 20 | 34 | 5 | S North sea IVc |
| 2013 | 3 | 22 | 35 | 5 | S North sea IVc |
| 2014 | 1 | 24 | 40 | 5 | S North sea IVc |
| 2015 | 2 | 21 | 33 | 3 | S North sea IVc |
| 2016 | 1 | 21 | 35 | 6 | S North sea IVc |
| 1965 | 0 | 4 | 3 | 0 | C North Sea IVb |
| 1966 | 2 | 18 | 16 | 8 | C North Sea IVb |
| 1967 | 1 | 28 | 20 | 5 | C North Sea IVb |
| 1968 | 5 | 30 | 25 | 14 | C North Sea IVb |
| 1969 | 1 | 23 | 23 | 5 | C North Sea IVb |
| 1970 | 1 | 29 | 23 | 7 | C North Sea IVb |
| 1971 | 2 | 28 | 27 | 9 | C North Sea IVb |
| 1972 | 3 | 24 | 26 | 8 | C North Sea IVb |
| 1973 | 2 | 27 | 25 | 11 | C North Sea IVb |
| 1974 | 2 | 24 | 25 | 9 | C North Sea IVb |
| 1975 | 1 | 25 | 27 | 12 | C North Sea IVb |
| 1976 | 2 | 30 | 31 | 16 | C North Sea IVb |
| 1977 | 5 | 31 | 30 | 16 | C North Sea IVb |
| 1978 | 4 | 29 | 29 | 16 | C North Sea IVb |
| 1979 | 2 | 28 | 29 | 11 | C North Sea IVb |
| 1980 | 3 | 26 | 25 | 9 | C North Sea IVb |
| 1981 | 3 | 29 | 21 | 11 | C North Sea IVb |
| 1982 | 4 | 24 | 21 | 11 | C North Sea IVb |
| 1983 | 4 | 33 | 24 | 6 | C North Sea IVb |
| 1984 | 4 | 34 | 30 | 7 | C North Sea IVb |
| 1985 | 2 | 28 | 24 | 8 | C North Sea IVb |
| 1986 | 2 | 32 | 28 | 10 | C North Sea IVb |
| 1987 | 2 | 32 | 26 | 5 | C North Sea IVb |
| 1988 | 2 | 27 | 30 | 6 | C North Sea IVb |
| 1989 | 3 | 34 | 31 | 10 | C North Sea IVb |
| 1990 | 4 | 29 | 33 | 8 | C North Sea IVb |
| 1991 | 3 | 33 | 38 | 8 | C North Sea IVb |
| 1992 | 2 | 32 | 29 | 9 | C North Sea IVb |
| 1993 | 4 | 30 | 29 | 8 | C North Sea IVb |
| 1994 | 4 | 35 | 31 | 10 | C North Sea IVb |
| 1995 | 4 | 34 | 37 | 7 | C North Sea IVb |
| 1996 | 3 | 35 | 34 | 6 | C North Sea IVb |
| 1997 | 5 | 31 | 35 | 7 | C North Sea IVb |
| 1998 | 2 | 35 | 39 | 10 | C North Sea IVb |
| 1999 | 5 | 33 | 42 | 4 | C North Sea IVb |
| 2000 | 4 | 34 | 40 | 6 | C North Sea IVb |
| 2001 | 4 | 32 | 42 | 6 | C North Sea IVb |
| 2002 | 4 | 33 | 43 | 7 | C North Sea IVb |
| 2003 | 4 | 34 | 40 | 6 | C North Sea IVb |
| 2004 | 2 | 32 | 47 | 7 | C North Sea IVb |
| 2005 | 4 | 35 | 46 | 9 | C North Sea IVb |
| 2006 | 4 | 33 | 45 | 7 | C North Sea IVb |
| 2007 | 3 | 35 | 43 | 5 | C North Sea IVb |
| 2008 | 4 | 34 | 46 | 5 | C North Sea IVb |
| 2009 | 5 | 28 | 45 | 4 | C North Sea IVb |
| 2010 | 4 | 35 | 39 | 5 | C North Sea IVb |
| 2011 | 3 | 31 | 43 | 5 | C North Sea IVb |
| 2012 | 4 | 33 | 50 | 6 | C North Sea IVb |
| 2013 | 3 | 32 | 48 | 6 | C North Sea IVb |
| 2014 | 2 | 33 | 38 | 5 | C North Sea IVb |
| 2015 | 5 | 31 | 41 | 5 | C North Sea IVb |
| 2016 | 2 | 31 | 40 | 7 | C North Sea IVb |
| 1965 | N North Sea IVa | ||||
| 1966 | N North Sea IVa | ||||
| 1967 | N North Sea IVa | ||||
| 1968 | N North Sea IVa | ||||
| 1969 | 0 | 11 | 4 | 0 | N North Sea IVa |
| 1970 | 0 | 7 | 2 | 0 | N North Sea IVa |
| 1971 | 1 | 21 | 18 | 5 | N North Sea IVa |
| 1972 | 3 | 26 | 24 | 9 | N North Sea IVa |
| 1973 | 4 | 19 | 21 | 7 | N North Sea IVa |
| 1974 | 2 | 22 | 22 | 4 | N North Sea IVa |
| 1975 | 4 | 24 | 21 | 6 | N North Sea IVa |
| 1976 | 3 | 24 | 19 | 6 | N North Sea IVa |
| 1977 | 3 | 26 | 23 | 12 | N North Sea IVa |
| 1978 | 3 | 25 | 24 | 11 | N North Sea IVa |
| 1979 | 3 | 25 | 26 | 12 | N North Sea IVa |
| 1980 | 5 | 28 | 24 | 5 | N North Sea IVa |
| 1981 | 3 | 24 | 17 | 3 | N North Sea IVa |
| 1982 | 3 | 24 | 23 | 7 | N North Sea IVa |
| 1983 | 3 | 33 | 24 | 2 | N North Sea IVa |
| 1984 | 3 | 31 | 26 | 5 | N North Sea IVa |
| 1985 | 3 | 31 | 28 | 6 | N North Sea IVa |
| 1986 | 3 | 28 | 24 | 7 | N North Sea IVa |
| 1987 | 2 | 26 | 23 | 2 | N North Sea IVa |
| 1988 | 3 | 29 | 20 | 5 | N North Sea IVa |
| 1989 | 3 | 30 | 22 | 3 | N North Sea IVa |
| 1990 | 3 | 26 | 29 | 5 | N North Sea IVa |
| 1991 | 4 | 29 | 25 | 6 | N North Sea IVa |
| 1992 | 5 | 28 | 28 | 2 | N North Sea IVa |
| 1993 | 5 | 29 | 27 | 2 | N North Sea IVa |
| 1994 | 5 | 25 | 25 | 2 | N North Sea IVa |
| 1995 | 5 | 27 | 24 | 2 | N North Sea IVa |
| 1996 | 5 | 27 | 31 | 4 | N North Sea IVa |
| 1997 | 5 | 26 | 33 | 1 | N North Sea IVa |
| 1998 | 5 | 32 | 34 | 3 | N North Sea IVa |
| 1999 | 6 | 30 | 33 | 1 | N North Sea IVa |
| 2000 | 5 | 29 | 32 | 0 | N North Sea IVa |
| 2001 | 5 | 30 | 36 | 0 | N North Sea IVa |
| 2002 | 5 | 33 | 29 | 1 | N North Sea IVa |
| 2003 | 5 | 27 | 30 | 0 | N North Sea IVa |
| 2004 | 4 | 25 | 31 | 2 | N North Sea IVa |
| 2005 | 4 | 29 | 33 | 1 | N North Sea IVa |
| 2006 | 3 | 26 | 33 | 0 | N North Sea IVa |
| 2007 | 4 | 28 | 33 | 0 | N North Sea IVa |
| 2008 | 4 | 30 | 41 | 2 | N North Sea IVa |
| 2009 | 7 | 27 | 37 | 1 | N North Sea IVa |
| 2010 | 6 | 29 | 39 | 1 | N North Sea IVa |
| 2011 | 5 | 28 | 38 | 4 | N North Sea IVa |
| 2012 | 6 | 27 | 34 | 1 | N North Sea IVa |
| 2013 | 5 | 33 | 40 | 4 | N North Sea IVa |
| 2014 | 8 | 31 | 39 | 4 | N North Sea IVa |
| 2015 | 6 | 31 | 39 | 5 | N North Sea IVa |
| 2016 | 5 | 30 | 39 | 4 | N North Sea IVa |