| Year | Years | Global ocean | Baltic Sea | North Atlantic | North Sea | Mediterranean Sea | Black Sea |
|---|---|---|---|---|---|---|---|
| 1870 | -0.59 | -0.53 | -0.33 | -0.44 | -0.43 | -0.59 | |
| 1871 | -0.6 | -0.57 | -0.33 | -0.47 | -0.43 | -0.56 | |
| 1872 | -0.58 | -0.65 | -0.34 | -0.5 | -0.41 | -0.55 | |
| 1873 | -0.55 | -0.62 | -0.3 | -0.45 | -0.39 | -0.5 | |
| 1874 | -0.55 | -0.66 | -0.31 | -0.5 | -0.38 | -0.44 | |
| 1875 | -0.55 | -0.63 | -0.31 | -0.46 | -0.38 | -0.41 | |
| 1876 | -0.54 | -0.67 | -0.32 | -0.49 | -0.36 | -0.34 | |
| 1877 | -0.54 | -0.57 | -0.33 | -0.45 | -0.34 | -0.25 | |
| 1878 | -0.54 | -0.58 | -0.35 | -0.45 | -0.38 | -0.23 | |
| 1879 | -0.54 | -0.51 | -0.36 | -0.42 | -0.41 | -0.24 | |
| 1880 | -0.52 | -0.53 | -0.39 | -0.46 | -0.42 | -0.22 | |
| 1881 | -0.51 | -0.53 | -0.4 | -0.5 | -0.42 | -0.17 | |
| 1882 | -0.51 | -0.57 | -0.39 | -0.51 | -0.42 | -0.15 | |
| 1883 | -0.51 | -0.58 | -0.38 | -0.54 | -0.45 | -0.18 | |
| 1884 | -0.52 | -0.58 | -0.4 | -0.56 | -0.5 | -0.23 | |
| 1885 | -0.53 | -0.53 | -0.41 | -0.53 | -0.54 | -0.26 | |
| 1886 | -0.53 | -0.57 | -0.41 | -0.59 | -0.57 | -0.28 | |
| 1887 | -0.54 | -0.57 | -0.42 | -0.6 | -0.58 | -0.31 | |
| 1888 | -0.55 | -0.64 | -0.38 | -0.59 | -0.58 | -0.38 | |
| 1889 | -0.56 | -0.66 | -0.38 | -0.59 | -0.58 | -0.4 | |
| 1890 | -0.56 | -0.75 | -0.37 | -0.63 | -0.57 | -0.42 | |
| 1891 | -0.55 | -0.74 | -0.35 | -0.59 | -0.58 | -0.41 | |
| 1892 | -0.54 | -0.77 | -0.34 | -0.57 | -0.59 | -0.43 | |
| 1893 | -0.54 | -0.67 | -0.33 | -0.5 | -0.61 | -0.48 | |
| 1894 | -0.53 | -0.57 | -0.31 | -0.41 | -0.59 | -0.42 | |
| 1895 | -0.53 | -0.58 | -0.31 | -0.4 | -0.57 | -0.42 | |
| 1896 | -0.51 | -0.57 | -0.3 | -0.39 | -0.55 | -0.43 | |
| 1897 | -0.51 | -0.62 | -0.31 | -0.4 | -0.55 | -0.45 | |
| 1898 | -0.51 | -0.59 | -0.33 | -0.37 | -0.59 | -0.48 | |
| 1899 | -0.51 | -0.57 | -0.39 | -0.4 | -0.59 | -0.5 | |
| 1900 | -0.49 | -0.56 | -0.39 | -0.41 | -0.59 | -0.49 | |
| 1901 | -0.49 | -0.5 | -0.39 | -0.4 | -0.61 | -0.42 | |
| 1902 | -0.51 | -0.56 | -0.41 | -0.46 | -0.62 | -0.47 | |
| 1903 | -0.53 | -0.54 | -0.41 | -0.46 | -0.64 | -0.49 | |
| 1904 | -0.54 | -0.61 | -0.43 | -0.55 | -0.65 | -0.42 | |
| 1905 | -0.56 | -0.58 | -0.47 | -0.59 | -0.7 | -0.4 | |
| 1906 | -0.58 | -0.56 | -0.48 | -0.59 | -0.7 | -0.41 | |
| 1907 | -0.59 | -0.59 | -0.5 | -0.6 | -0.72 | -0.43 | |
| 1908 | -0.6 | -0.47 | -0.51 | -0.54 | -0.71 | -0.43 | |
| 1909 | -0.59 | -0.37 | -0.5 | -0.49 | -0.71 | -0.41 | |
| 1910 | -0.56 | -0.39 | -0.46 | -0.49 | -0.71 | -0.38 | |
| 1911 | -0.57 | -0.45 | -0.43 | -0.49 | -0.67 | -0.3 | |
| 1912 | -0.58 | -0.57 | -0.43 | -0.55 | -0.66 | -0.29 | |
| 1913 | -0.58 | -0.58 | -0.44 | -0.56 | -0.65 | -0.26 | |
| 1914 | -0.56 | -0.66 | -0.44 | -0.61 | -0.65 | -0.22 | |
| 1915 | -0.55 | -0.59 | -0.46 | -0.55 | -0.62 | -0.23 | |
| 1916 | -0.53 | -0.61 | -0.46 | -0.51 | -0.57 | -0.25 | |
| 1917 | -0.53 | -0.66 | -0.47 | -0.57 | -0.56 | -0.19 | |
| 1918 | -0.53 | -0.67 | -0.46 | -0.61 | -0.53 | -0.06 | |
| 1919 | -0.52 | -0.75 | -0.44 | -0.66 | -0.49 | 0.02 | |
| 1920 | -0.53 | -0.79 | -0.42 | -0.68 | -0.46 | 0.06 | |
| 1921 | -0.52 | -0.73 | -0.42 | -0.66 | -0.44 | 0.08 | |
| 1922 | -0.51 | -0.69 | -0.42 | -0.64 | -0.42 | 0.07 | |
| 1923 | -0.49 | -0.64 | -0.41 | -0.57 | -0.37 | 0.04 | |
| 1924 | -0.49 | -0.65 | -0.38 | -0.55 | -0.35 | 0.01 | |
| 1925 | -0.48 | -0.5 | -0.37 | -0.48 | -0.31 | 0.05 | |
| 1926 | -0.46 | -0.58 | -0.33 | -0.52 | -0.29 | 0.04 | |
| 1927 | -0.46 | -0.59 | -0.3 | -0.54 | -0.29 | 0.04 | |
| 1928 | -0.44 | -0.53 | -0.24 | -0.45 | -0.29 | -0.04 | |
| 1929 | -0.43 | -0.4 | -0.22 | -0.37 | -0.26 | -0.08 | |
| 1930 | -0.42 | -0.31 | -0.2 | -0.3 | -0.27 | -0.09 | |
| 1931 | -0.41 | -0.28 | -0.18 | -0.29 | -0.24 | -0.04 | |
| 1932 | -0.4 | -0.22 | -0.17 | -0.29 | -0.19 | 0.02 | |
| 1933 | -0.39 | -0.12 | -0.13 | -0.24 | -0.19 | 0.06 | |
| 1934 | -0.38 | -0.03 | -0.1 | -0.18 | -0.2 | 0.12 | |
| 1935 | -0.36 | -0.02 | -0.11 | -0.17 | -0.2 | 0.22 | |
| 1936 | -0.35 | -0.16 | -0.11 | -0.23 | -0.2 | 0.22 | |
| 1937 | -0.35 | -0.18 | -0.11 | -0.26 | -0.21 | 0.22 | |
| 1938 | -0.34 | -0.18 | -0.13 | -0.25 | -0.19 | 0.25 | |
| 1939 | -0.31 | -0.21 | -0.12 | -0.3 | -0.17 | 0.33 | |
| 1940 | -0.29 | -0.28 | -0.09 | -0.31 | -0.19 | 0.3 | |
| 1941 | -0.29 | -0.33 | -0.1 | -0.32 | -0.17 | 0.25 | |
| 1942 | -0.3 | -0.38 | -0.13 | -0.35 | -0.15 | 0.19 | |
| 1943 | -0.31 | -0.46 | -0.14 | -0.36 | -0.19 | 0.1 | |
| 1944 | -0.32 | -0.51 | -0.15 | -0.35 | -0.22 | -0.03 | |
| 1945 | -0.33 | -0.5 | -0.17 | -0.37 | -0.19 | -0.06 | |
| 1946 | -0.33 | -0.43 | -0.15 | -0.35 | -0.17 | -0.06 | |
| 1947 | -0.34 | -0.36 | -0.12 | -0.32 | -0.12 | -0.06 | |
| 1948 | -0.33 | -0.23 | -0.08 | -0.23 | -0.12 | -0.09 | |
| 1949 | -0.34 | -0.24 | -0.06 | -0.25 | -0.15 | -0.13 | |
| 1950 | -0.37 | -0.23 | -0.04 | -0.25 | -0.13 | -0.13 | |
| 1951 | -0.39 | -0.31 | -0.04 | -0.3 | -0.15 | -0.19 | |
| 1952 | -0.38 | -0.3 | -0.02 | -0.29 | -0.18 | -0.18 | |
| 1953 | -0.35 | -0.31 | 0.03 | -0.28 | -0.21 | -0.18 | |
| 1954 | -0.34 | -0.22 | 0.04 | -0.21 | -0.22 | -0.19 | |
| 1955 | -0.32 | -0.25 | 0.05 | -0.23 | -0.2 | -0.13 | |
| 1956 | -0.31 | -0.22 | 0.07 | -0.2 | -0.22 | -0.12 | |
| 1957 | -0.3 | -0.26 | 0.06 | -0.23 | -0.19 | -0.15 | |
| 1958 | -0.3 | -0.25 | 0.02 | -0.27 | -0.2 | -0.14 | |
| 1959 | -0.32 | -0.29 | -0.02 | -0.3 | -0.18 | -0.14 | |
| 1960 | -0.31 | -0.31 | -0.02 | -0.32 | -0.17 | -0.14 | |
| 1961 | -0.3 | -0.32 | -0.06 | -0.33 | -0.17 | -0.06 | |
| 1962 | -0.29 | -0.19 | -0.06 | -0.27 | -0.14 | 0.07 | |
| 1963 | -0.3 | -0.15 | -0.08 | -0.27 | -0.12 | 0.13 | |
| 1964 | -0.29 | -0.12 | -0.12 | -0.29 | -0.12 | 0.13 | |
| 1965 | -0.3 | -0.21 | -0.16 | -0.41 | -0.12 | 0.19 | |
| 1966 | -0.32 | -0.22 | -0.21 | -0.44 | -0.16 | 0.2 | |
| 1967 | -0.32 | -0.26 | -0.27 | -0.51 | -0.22 | 0.2 | |
| 1968 | -0.32 | -0.16 | -0.29 | -0.47 | -0.27 | 0.17 | |
| 1969 | -0.34 | -0.1 | -0.32 | -0.42 | -0.33 | 0.13 | |
| 1970 | -0.34 | 0 | -0.34 | -0.4 | -0.38 | 0.18 | |
| 1971 | -0.35 | 0.01 | -0.38 | -0.36 | -0.41 | 0.16 | |
| 1972 | -0.35 | 0 | -0.41 | -0.37 | -0.46 | 0.04 | |
| 1973 | -0.35 | -0.1 | -0.44 | -0.44 | -0.53 | -0.04 | |
| 1974 | -0.35 | -0.22 | -0.46 | -0.55 | -0.55 | -0.05 | |
| 1975 | -0.36 | -0.27 | -0.44 | -0.56 | -0.59 | -0.06 | |
| 1976 | -0.36 | -0.3 | -0.43 | -0.55 | -0.61 | -0.07 | |
| 1977 | -0.34 | -0.3 | -0.43 | -0.57 | -0.59 | -0.1 | |
| 1978 | -0.34 | -0.31 | -0.42 | -0.56 | -0.56 | -0.15 | |
| 1979 | -0.34 | -0.36 | -0.41 | -0.59 | -0.58 | -0.14 | |
| 1980 | -0.33 | -0.49 | -0.39 | -0.64 | -0.56 | -0.22 | |
| 1981 | -0.31 | -0.64 | -0.4 | -0.73 | -0.52 | -0.24 | |
| 1982 | -0.28 | -0.74 | -0.37 | -0.8 | -0.5 | -0.28 | |
| 1983 | -0.25 | -0.7 | -0.36 | -0.77 | -0.46 | -0.29 | |
| 1984 | -0.22 | -0.57 | -0.34 | -0.67 | -0.41 | -0.3 | |
| 1985 | -0.2 | -0.45 | -0.31 | -0.52 | -0.38 | -0.35 | |
| 1986 | -0.18 | -0.42 | -0.32 | -0.49 | -0.35 | -0.37 | |
| 1987 | -0.16 | -0.37 | -0.32 | -0.42 | -0.35 | -0.49 | |
| 1988 | -0.14 | -0.39 | -0.32 | -0.44 | -0.36 | -0.53 | |
| 1989 | -0.13 | -0.38 | -0.32 | -0.42 | -0.31 | -0.49 | |
| 1990 | -0.1 | -0.37 | -0.29 | -0.36 | -0.26 | -0.47 | |
| 1991 | -0.07 | -0.34 | -0.26 | -0.36 | -0.25 | -0.4 | |
| 1992 | -0.03 | -0.27 | -0.19 | -0.24 | -0.24 | -0.45 | |
| 1993 | -0.01 | -0.17 | -0.15 | -0.15 | -0.2 | -0.35 | |
| 1994 | -0.01 | -0.13 | -0.12 | -0.1 | -0.16 | -0.28 | |
| 1995 | -0.01 | -0.16 | -0.11 | -0.12 | -0.11 | -0.19 | |
| 1996 | 0 | -0.15 | -0.08 | -0.14 | -0.09 | -0.1 | |
| 1997 | 0.01 | -0.07 | -0.05 | -0.06 | -0.04 | 0.01 | |
| 1998 | 0.03 | -0.06 | 0.01 | 0 | 0.06 | 0.1 | |
| 1999 | 0.05 | 0 | 0.07 | 0.1 | 0.11 | 0.16 | |
| 2000 | 0.07 | 0.05 | 0.14 | 0.15 | 0.09 | 0.15 | |
| 2001 | 0.07 | 0.1 | 0.16 | 0.19 | 0.13 | 0.16 | |
| 2002 | 0.08 | 0.25 | 0.2 | 0.32 | 0.18 | 0.22 | |
| 2003 | 0.07 | 0.34 | 0.22 | 0.35 | 0.2 | 0.34 | |
| 2004 | 0.05 | 0.41 | 0.2 | 0.38 | 0.23 | 0.4 | |
| 2005 | 0.04 | 0.35 | 0.21 | 0.32 | 0.23 | 0.43 | |
| 2006 | 0.03 | 0.33 | 0.21 | 0.31 | 0.27 | 0.4 | |
| 2007 | 0.02 | 0.34 | 0.21 | 0.33 | 0.27 | 0.36 | |
| 2008 | 0.02 | 0.32 | 0.23 | 0.31 | 0.28 | 0.33 | |
| 2009 | 0.01 | 0.36 | 0.23 | 0.27 | 0.25 | 0.37 | |
| 2010 | -0.01 | 0.4 | 0.22 | 0.26 | 0.27 | 0.43 | |
| 2011 | -0.03 | 0.39 | 0.21 | 0.26 | 0.31 | 0.48 | |
| 2012 | -0.03 | 0.31 | 0.18 | 0.16 | 0.48 | 0.6 |