Year,Value,Alaska (State),Clouds,Mar-Apr,(%)
1940,56.061
1941,71.034
1942,70.205
1943,67.409
1944,69.825
1945,70.063
1946,68.299
1947,61.469
1948,66.355
1949,66.555
1950,68.211
1951,65.363
1952,70.739
1953,65.569
1954,60.144
1955,68.009
1956,64.012
1957,65.213
1958,69.328
1959,64.112
1960,57.341
1961,68.647
1962,67.109
1963,70.128
1964,66.206
1965,77.516
1966,64.901
1967,68.953
1968,70.12
1969,70.039
1970,76.542
1971,64.607
1972,63.122
1973,74.285
1974,64.208
1975,69.878
1976,72.709
1977,72.777
1978,62.704
1979,69.123
1980,72.372
1981,63.453
1982,72.247
1983,61.852
1984,71.494
1985,72.945
1986,55.521
1987,62.317
1988,72.576
1989,63.253
1990,66.847
1991,68.956
1992,71.081
1993,67.162
1994,76.124
1995,63.986
1996,57.693
1997,53.676
1998,70.404
1999,70.665
2000,63.773
2001,71.682
2002,57.799
2003,58.332
2004,66.101
2005,66.967
2006,66.376
2007,62.472
2008,77.606
2009,73.131
2010,68.735
2011,53.138
2012,66.448
2013,60.092
2014,53.674
2015,69.535
2016,66.482
2017,50.113
2018,63.089
2019,68.76
2020,70.194
2021,67.205
2022,57.72
2023,67.874
2024,72.128
2025,72.292