Year,Value,Lake Superior,Seaice,Jan,(%)
1953,11.779
1954,11.779
1955,11.779
1956,11.754
1957,11.779
1958,11.779
1959,11.777
1960,3.077
1961,4.436
1962,4.778
1963,34.568
1964,3.86
1965,16.435
1966,12.44
1967,10.832
1968,40.069
1969,4.113
1970,16.457
1971,4.906
1972,20.008
1973,5.504
1974,14.775
1975,2.842
1976,6.599
1977,54.787
1978,16.589
1979,9.916
1980,6.623
1981,10.314
1982,5.391
1983,3.136
1984,10.077
1985,5.828
1986,6.089
1987,3.949
1988,0.756
1989,0.844
1990,0.849
1991,1.577
1992,1.122
1993,0.929
1994,7.728
1995,1.031
1996,1.579
1997,1.419
1998,0.721
1999,0.783
2000,0.828
2001,0.721
2002,0.721
2003,0.865
2004,0.968
2005,0.721
2006,0.721
2007,0.752
2008,51.099
2009,88.615
2010,69.703
2011,70.135
2012,35.301
2013,41.237
2014,34.324
2015,18.442
2016,2.771
2017,2.215
2018,12.042
2019,5.893
2020,6.815
2021,1.831
2022,10.078
2023,3.391
2024,4.639
2025,2.368