Each panel shows the 1σ confidence levels of a cluster JEIβ_sym(r), as obtained from the procedure described in Sect. 3.3 (red shadings), and its central value (yellow line), the weighted mean of the nine profiles, ⟨β_sym(r)⟩, as defined in Eq. (6) (black dash-dotted line), and the β_sym(r) of the other eight clusters (black dotted lines). The horizontal dashed black line indicates isotropic orbits. Orbits are radial above this line and tangential below it.