Year,Value,Global,Precip,Feb,(in.)
1940,3.512
1941,3.425
1942,3.336
1943,3.402
1944,3.406
1945,3.441
1946,3.499
1947,3.294
1948,3.309
1949,3.362
1950,3.301
1951,3.296
1952,3.323
1953,3.336
1954,3.267
1955,3.37
1956,3.319
1957,3.367
1958,3.416
1959,3.318
1960,3.395
1961,3.385
1962,3.368
1963,3.337
1964,3.439
1965,3.389
1966,3.453
1967,3.409
1968,3.432
1969,3.424
1970,3.444
1971,3.378
1972,3.407
1973,3.51
1974,3.403
1975,3.359
1976,3.373
1977,3.421
1978,3.394
1979,3.413
1980,3.421
1981,3.481
1982,3.402
1983,3.468
1984,3.408
1985,3.435
1986,3.341
1987,3.434
1988,3.326
1989,3.392
1990,3.332
1991,3.42
1992,3.426
1993,3.316
1994,3.337
1995,3.308
1996,3.412
1997,3.447
1998,3.516
1999,3.441
2000,3.447
2001,3.408
2002,3.437
2003,3.469
2004,3.51
2005,3.452
2006,3.43
2007,3.452
2008,3.53
2009,3.483
2010,3.546
2011,3.525
2012,3.4
2013,3.498
2014,3.492
2015,3.482
2016,3.631
2017,3.511
2018,3.463
2019,3.506
2020,3.59
2021,3.477
2022,3.458
2023,3.442
2024,3.464
2025,3.404