Year,Value,Alaska (State),Clouds,Aug,(%)
1940,75.521
1941,76.15
1942,84.703
1943,88.404
1944,85.315
1945,86.292
1946,81.187
1947,77.327
1948,78.039
1949,78.863
1950,71.649
1951,80.559
1952,79.1
1953,82.91
1954,81.122
1955,78.565
1956,85.159
1957,74.052
1958,79.796
1959,74.958
1960,77.162
1961,78.855
1962,75.473
1963,82.19
1964,75.212
1965,77.72
1966,75.484
1967,77.846
1968,64.134
1969,73.409
1970,79.776
1971,80.079
1972,77.159
1973,81.66
1974,70.925
1975,73.58
1976,68.306
1977,67.869
1978,70.397
1979,77.575
1980,77.881
1981,77.375
1982,73.756
1983,82.584
1984,78.784
1985,77.036
1986,82.454
1987,75.115
1988,84.344
1989,82.1
1990,74.422
1991,72.198
1992,83.801
1993,81.815
1994,79.279
1995,78.341
1996,76.665
1997,82.58
1998,85.362
1999,77.859
2000,78.994
2001,81.511
2002,70.583
2003,79.429
2004,64.945
2005,67.446
2006,82.297
2007,67.762
2008,73.283
2009,75.416
2010,78.59
2011,80.922
2012,81.368
2013,78.826
2014,76.814
2015,81.955
2016,78.676
2017,83.38
2018,85.247
2019,76.667
2020,74.837
2021,83.453
2022,84.04
2023,81.044
2024,82.185
2025,81.108