Year,Value,Lake Superior,Seaice,Jan,(%)
1953,36.881
1954,36.881
1955,36.881
1956,36.881
1957,36.881
1958,36.881
1959,36.881
1960,5.74
1961,9.947
1962,10.624
1963,63.721
1964,9.226
1965,42.578
1966,28.47
1967,23.386
1968,70.763
1969,9.226
1970,33.157
1971,10.624
1972,63.73
1973,11.345
1974,37.609
1975,5.74
1976,15.64
1977,100.0
1978,33.419
1979,27.947
1980,15.725
1981,23.651
1982,7.893
1983,3.598
1984,31.521
1985,12.168
1986,10.055
1987,5.754
1988,0.721
1989,0.721
1990,0.721
1991,0.721
1992,0.721
1993,0.721
1994,7.179
1995,0.721
1996,0.721
1997,0.721
1998,0.721
1999,0.721
2000,0.721
2001,0.721
2002,0.721
2003,0.721
2004,0.721
2005,0.721
2006,0.721
2007,0.721
2008,100.0
2009,100.0
2010,99.282
2011,100.0
2012,82.042
2013,100.0
2014,75.208
2015,45.436
2016,0.721
2017,2.159
2018,29.882
2019,3.588
2020,9.335
2021,0.721
2022,13.518
2023,2.159
2024,0.721
2025,0.721