Yield trends, variability and stagnation analysis of major crops in France over more than a century.

All correlation coefficients between these two datasets were above 0.99 (Pearson’s r ) and highly significant with p < 1e-5.

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Inter-annual yield variability When expressed relative to decadal mean yields, the variability of crop yields (as CV, Coefficient of Variation, defined as standard deviation over mean) shows a decreasing trend over time for a large proportion of crop-department combinations (Fig. 4 ; SI Fig. 7a ).

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