Year,Value,Lake Superior,SST,Mar,(°C)
1940,-1.021
1941,-1.022
1942,-1.022
1943,-1.022
1944,-1.021
1945,-1.022
1946,-1.022
1947,-1.022
1948,-1.021
1949,-1.022
1950,-1.022
1951,-1.022
1952,-1.022
1953,-1.022
1954,-1.022
1955,-1.022
1956,-1.021
1957,-1.022
1958,-1.022
1959,-1.022
1960,0.197
1961,0.559
1962,-1.052
1963,-1.368
1964,0.921
1965,-1.43
1966,0.241
1967,-1.442
1968,-1.543
1969,0.84
1970,-1.495
1971,1.109
1972,-1.642
1973,1.141
1974,-0.359
1975,1.247
1976,0.368
1977,-1.282
1978,-1.183
1979,-1.53
1980,-0.812
1981,-0.475
1982,-0.526
1983,1.17
1984,-0.809
1985,-0.3
1986,-1.11
1987,1.185
1988,0.586
1989,-1.551
1990,0.675
1991,0.429
1992,0.757
1993,-0.085
1994,-1.492
1995,1.251
1996,-1.477
1997,-1.041
1998,1.287
1999,1.284
2000,1.286
2001,0.935
2002,1.287
2003,-1.594
2004,1.149
2005,1.079
2006,1.268
2007,1.242
2008,0.0
2009,0.0
2010,-0.0
2011,0.0
2012,0.08
2013,-0.001
2014,-1.673
2015,-1.633
2016,0.116
2017,0.368
2018,-0.974
2019,-1.413
2020,-0.51
2021,-0.28
2022,-1.091
2023,0.019
2024,0.678
2025,-0.168