Year,Value,Northeast U.S.,Temp,Jan,(°F)
1940,15.739
1941,19.223
1942,18.158
1943,18.294
1944,23.804
1945,15.456
1946,22.379
1947,25.8
1948,16.003
1949,27.801
1950,29.622
1951,25.216
1952,24.895
1953,27.699
1954,19.534
1955,20.303
1956,23.864
1957,16.639
1958,23.373
1959,20.61
1960,23.428
1961,15.815
1962,20.288
1963,19.787
1964,24.188
1965,18.577
1966,20.621
1967,27.14
1968,17.028
1969,22.125
1970,14.449
1971,16.52
1972,23.654
1973,24.924
1974,24.358
1975,25.765
1976,16.978
1977,13.542
1978,18.852
1979,21.693
1980,23.399
1981,14.781
1982,14.002
1983,24.28
1984,18.589
1985,17.363
1986,22.946
1987,21.691
1988,20.733
1989,26.536
1990,30.715
1991,22.376
1992,23.378
1993,25.025
1994,13.486
1995,27.959
1996,20.556
1997,21.121
1998,28.246
1999,22.14
2000,20.72
2001,22.717
2002,29.479
2003,16.227
2004,13.998
2005,20.257
2006,30.835
2007,26.216
2008,26.325
2009,16.568
2010,23.695
2011,20.502
2012,26.749
2013,25.142
2014,18.826
2015,18.606
2016,24.807
2017,28.865
2018,21.531
2019,21.48
2020,28.981
2021,25.888
2022,18.65
2023,32.048
2024,27.309
2025,21.311