Year,Value,Alaska (State),Clouds,Sep,(%)
1940,80.457
1941,65.445
1942,82.826
1943,84.276
1944,83.187
1945,82.502
1946,75.686
1947,79.414
1948,78.834
1949,77.895
1950,77.907
1951,77.815
1952,68.624
1953,75.2
1954,77.905
1955,80.057
1956,74.128
1957,76.457
1958,79.606
1959,69.554
1960,81.843
1961,80.379
1962,77.529
1963,62.665
1964,78.274
1965,79.986
1966,76.656
1967,72.546
1968,67.615
1969,61.89
1970,70.782
1971,77.731
1972,76.14
1973,74.528
1974,65.424
1975,79.964
1976,80.292
1977,79.541
1978,77.577
1979,71.629
1980,73.101
1981,75.682
1982,84.04
1983,75.31
1984,68.273
1985,82.978
1986,78.554
1987,82.721
1988,75.5
1989,81.289
1990,80.901
1991,77.439
1992,70.809
1993,81.341
1994,79.313
1995,79.51
1996,72.174
1997,80.796
1998,78.209
1999,76.894
2000,79.374
2001,75.148
2002,77.941
2003,64.024
2004,71.463
2005,85.366
2006,77.194
2007,76.262
2008,72.507
2009,77.515
2010,60.19
2011,81.207
2012,81.525
2013,80.122
2014,70.886
2015,78.667
2016,72.252
2017,78.854
2018,68.292
2019,77.256
2020,79.452
2021,76.702
2022,83.275
2023,81.502
2024,80.901
2025,78.951