Fraction of galaxies classed as quenched as a function of galaxy density, binned by stellar mass and redshift. The stellar mass bins listed in the legend are in units of log₁₀(M_*/M_⊙). The shaded grey regions in the background are indicative of the three density bins used in Lemaux et al. (2019); see text for details. The shaded coloured regions show 68% confidence intervals. Dashed lines indicate density bins where the total number of galaxies is < 5.