Distribution of the 5 GHz radio power of the Master sample and PS sample. The upper histogram shows the distribution of the 5 GHz radio power for the 3303 sources from the Master sample that have redshift information available in red. The black histogram in the bottom plot shows the distribution of the 5 GHz radio power of the 138 sources from the PS sample for which redshift data is available. The median redshifts of these distributions are plotted as dashed lines in their respective colours. For the total sample, the median P_5 GHz value and the range of the 16th and 84th percentiles of the distribution is given by log₁₀ W Hz⁻¹, and for the PS source sample this is given by log₁₀ W Hz⁻¹.