Year,Value,WFO Anchorage,DewPt,Mar-May,(%)
1940,66.592
1941,74.321
1942,70.606
1943,68.991
1944,70.524
1945,66.886
1946,70.502
1947,72.644
1948,67.971
1949,71.798
1950,70.58
1951,68.873
1952,71.328
1953,68.013
1954,67.131
1955,69.613
1956,68.754
1957,69.719
1958,70.316
1959,64.224
1960,62.678
1961,63.217
1962,67.547
1963,65.323
1964,64.859
1965,69.663
1966,63.868
1967,61.165
1968,63.959
1969,64.216
1970,66.827
1971,63.71
1972,63.512
1973,67.492
1974,63.757
1975,66.297
1976,66.089
1977,67.748
1978,63.92
1979,68.463
1980,68.013
1981,65.461
1982,65.167
1983,65.833
1984,64.674
1985,64.265
1986,60.202
1987,63.895
1988,69.829
1989,64.427
1990,65.902
1991,67.063
1992,64.517
1993,66.468
1994,68.384
1995,67.144
1996,61.85
1997,60.519
1998,70.26
1999,65.405
2000,66.209
2001,66.449
2002,59.797
2003,60.353
2004,66.376
2005,62.933
2006,60.647
2007,58.894
2008,65.178
2009,60.741
2010,63.834
2011,59.171
2012,65.04
2013,59.951
2014,55.028
2015,63.643
2016,66.185
2017,58.66
2018,66.334
2019,66.166
2020,62.332
2021,61.248
2022,61.176
2023,63.279
2024,66.121
2025,68.523