Abundance distribution as function of redshift as estimated in three radial bins (0−0.15 R₅₀₀, 0.15−0.4 R₅₀₀, and >0.4 R₅₀₀). Filled points indicate CC clusters. Left: all data are plotted with the best fits done in the given radial bin (dotted line) and including the radial dependence (dashed line); right: the best fits in redshift and radius (dashed lines) are shown with representative data points obtained as a weighted mean, with the relative error (solid bars) and dispersion (dashed bars).