Ensemble-average best-fit gNFW profile to the joint Bolocam/Planck data for the BoXSZ⁺ sample of clusters (black). Profiles for the 47 individual BoXSZ⁺ clusters are shown as thin gray lines. For comparison, the ensemble-average profiles from other published gNFW fits to large samples of clusters are shown in red (Arnaud et al. 2010), green (Planck Collaboration et al. 2013a), and blue (Sayers et al. 2013). The profiles extend over the approximate radial range probed by the data in each analysis. The ensemble-average profiles show good agreement at R ≲ 0.5R₅₀₀, but noticeably diverge at larger radii.