Stellar mass of galaxies as a function of redshift, shown as an orange heat map. The blue and red lines show the estimated stellar mass completeness limit for all the galaxies (star-forming and quiescent) and quiescent galaxies only, respectively. At each redshift, we define the mass completeness limit as the stellar mass for which 90% of galaxies have their limiting mass below it (Section 3.2). All galaxies that are more massive than the mass completeness limit of quiescent galaxies for the highest redshift of this study at z = 1.2 are selected (log(﹩M/{M}_{\odot }﹩) ﹩\geqslant \,9.6﹩) for our analysis (cyan points). This is similar to a volume-limited selection.