Left: abundance measured by EPIC XMM-Newton as a function of the redshift for the clusters in our sample including the emission from the whole cluster at r < 0.6r₅₀₀ (top) and excising the core (bottom). The error bars in Z are at 1σ, while shaded areas show the weighted mean of the abundance with its error (blue) and rms dispersion (cyan) in three redshift bins. Right: abundance measured by EPIC XMM-Newton as a function of the redshift for the clusters in our sample in different spatial bins (from top to bottom: 0–0.15 r₅₀₀, 0.15–0.4 r₅₀₀, and  > 0.4r₅₀₀), with 1σ error bars indicated.