Stacked redshift posterior estimates for the galaxy (or host-dominated) population (top) and for the combined AGN selected population (bottom; IR, X-ray or optically selected) for each of the three fields. The spectroscopic redshift samples available become particularly sparse at z > 1 for the EN1 and LH fields. Grey dotted and dashed line correspond to ± 0.1 × (1 + z_spec) and ± 0.2 × (1 + z_spec), respectively. The colour scale is illustrative and represents the summed P(z) (normalised such that ∫P(z)dz = 1) for each z_spec bin, more precise photo-z therefore result in darker peaks.