Comparison between the PACO sample (Massardi et al. 2011; Bonavera et al. 2011; Bonaldi et al. 2013) and the extrapolated, colour-corrected PCCS flux densities (DETFLUX) at 32 (left) and 40 GHz (right). The multiple PACO observations of each source have been averaged to a single flux density and therefore the uncertainties reflect the variability of the sources instead of the actual flux density accuracy of the measurements (a few mJy).