Panel a): concentration (C₅₀₈₀) parameter negatively correlated with cooling time for fixed radii. Panel b): Gini coefficient negatively correlated with cooling time. Panel c): M₂₀ correlated with cooling time. ° = strong relaxed clusters; ◇ = relaxed clusters; + = non-relaxed clusters; and × = strong non-relaxed clusters. We used the power law fitting to show the linear correlation.