β(r) of our nine clusters (colored solid lines) and of the ten nearby clusters of Li et al. (2023, black dot-dashed lines) displayed in the same format as that of Fig. 4 in Li et al. (2023). The colors identify our nine clusters, in order of increasing redshift with increasing color wavelength (from blue to brown). The vertical magenta dotted line indicates 1.5 r₅₀₀, which is on average equivalent to r₂₀₀ for our nine clusters.