Year,Value,Gulf of Bothnia,SST,Jun,(°C)
1940,6.547
1941,5.186
1942,5.231
1943,6.971
1944,5.836
1945,7.089
1946,6.188
1947,6.189
1948,6.93
1949,6.194
1950,6.87
1951,5.883
1952,6.393
1953,6.95
1954,6.319
1955,5.652
1956,5.837
1957,5.705
1958,5.42
1959,6.202
1960,6.375
1961,6.787
1962,5.684
1963,6.567
1964,6.111
1965,5.696
1966,7.108
1967,6.147
1968,6.524
1969,7.581
1970,6.886
1971,6.54
1972,8.601
1973,9.674
1974,9.323
1975,8.305
1976,7.53
1977,7.302
1978,7.142
1979,6.777
1980,7.47
1981,6.339
1982,6.876
1983,7.681
1984,8.97
1985,6.208
1986,8.709
1987,5.427
1988,8.478
1989,8.815
1990,9.841
1991,7.043
1992,11.54
1993,8.114
1994,7.57
1995,7.983
1996,6.945
1997,8.762
1998,7.389
1999,9.195
2000,7.978
2001,8.923
2002,11.135
2003,7.841
2004,8.151
2005,8.579
2006,9.221
2007,10.069
2008,11.133
2009,9.57
2010,9.17
2011,9.757
2012,9.39
2013,11.067
2014,9.026
2015,9.027
2016,10.075
2017,9.108
2018,10.564
2019,9.953
2020,13.021
2021,12.02
2022,12.058
2023,11.557
2024,12.67