Left to right: evolution of S3, S4 and S5 with redshift at non-linear and weakly non-linear angular scales. The black symbols connected with solid lines and those linked with dotted lines correspond to θ = 0| $_{.}^{\circ}$|012 for all fields combined and without W3, respectively. The hashed grey region represents a 2σ confidence region around the solid black curves; for measurements θ = 0| $_{.}^{\circ}$|23 in blue. Perturbation theory predictions for θ = 0| $_{.}^{\circ}$|23 are given in green with linear bias and in red with b = 1. For each of these colours, there are two curves corresponding, respectively, to the 3D case (equations 27–29, lower curve) and the 2D case (equations 30–32, upper curve). The top axis shows the comoving scales corresponding to θ = 0| $_{.}^{\circ}$|23 at each redshift interval.
