Integrated tSZ signal as a function of cluster richness (left) and total mass (right). The black points correspond to the average signal obtained for the richness bins considered in Fig. 9. The red line represents the corresponding best-fit power law (Eqs. (4) and (6), respectively). Considering z ≤ 0.42, there are 13 814 objects for 8 <N₂₀₀ ≤ 10, 37 250 for 10 <N₂₀₀ ≤ 20, 7458 for 20 <N₂₀₀ ≤ 30, 2069 for 30 <N₂₀₀ ≤ 40, and 1133 for 40 <N₂₀₀ ≤ 60.