Left: SFR–M_∗ bins with accurate estimates from our stacking analysis. Estimates are considered accurate if S_{1.4 GHz}/N_{1.4 GHz} > 4 (i.e. signal, S, over noise, N, ratio) and S_{610 MHz}/N_{610 MHz} > 4. Short-dashed lines on a white background show the MS of star formation. Right: fraction of SFR–M_∗ bins with M_∗ > 10¹⁰ M_⊙ and with accurate estimates as function of their Δlog (SSFR)_MS. Horizontal dashed lines represent the 80% completeness limits. Hatched areas represent the regions of parameter space affected by incompleteness, i.e. where less than 80% of our SFR–M_∗ bins have accurate estimates. Shaded regions show the location and dispersion of the MS of star formation.