ESD profile (ΔΣ) multiplied by the radius R as a function of radius R for the complete stack of 157 SZ-detected clusters. The signal is detected at 25σ significance. The best-fitting model is shown using a single NFW, shown in red, and the halo model, shown in orange. A limited range of scales is used for the NFW model to avoid the impact of mis-centring at small scales and the contribution from large-scale structure at scales greater than 5 Mpc. Both models give good fits to the data.