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Figure 7


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Écarts cumulés des moyennes annuelles de la nébulosité par rapport aux moyennes de 50 ans (Pologne, 1951–2000). On a marqué l’étendue de 1, 2 et 3 écarts types. Cumulative deviations of the mean yearly cloudiness from the 50-year means in Poland (1951–2000). The range of 1, 2 and 3 standard deviations are marked.

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