Year,Value,Global,Clouds,Jan,(%)
1940,61.857
1941,61.795
1942,61.682
1943,62.02
1944,62.475
1945,61.846
1946,62.383
1947,62.972
1948,62.075
1949,62.598
1950,62.558
1951,62.108
1952,62.24
1953,62.81
1954,62.933
1955,63.052
1956,61.583
1957,61.914
1958,63.987
1959,62.741
1960,62.464
1961,62.844
1962,62.359
1963,62.306
1964,62.763
1965,62.839
1966,63.143
1967,61.895
1968,63.073
1969,63.68
1970,63.166
1971,63.118
1972,63.231
1973,63.41
1974,62.338
1975,62.545
1976,61.613
1977,63.166
1978,61.487
1979,62.952
1980,63.265
1981,62.592
1982,62.973
1983,63.22
1984,62.512
1985,63.658
1986,62.091
1987,62.45
1988,63.354
1989,62.239
1990,63.52
1991,63.342
1992,63.658
1993,62.051
1994,62.532
1995,61.877
1996,62.841
1997,62.607
1998,64.022
1999,62.058
2000,62.315
2001,62.919
2002,63.334
2003,63.725
2004,64.36
2005,63.335
2006,63.729
2007,63.417
2008,64.021
2009,63.664
2010,63.473
2011,63.365
2012,62.972
2013,64.529
2014,63.272
2015,63.684
2016,64.149
2017,63.027
2018,63.076
2019,63.671
2020,64.312
2021,63.182
2022,62.812
2023,61.624
2024,63.491
2025,61.777