Gas fraction μ_gas = M_H2/M_* (top panel) and depletion time t_depl = M_H2/SFR (bottom panel) as a function of log(1 + z). We show the observed DP galaxies (red), the EGNOG sample (blue), the COLD GASS sample (grey), the low-SF sample (black), the ULIRG sample (green), the M sample (turquoise), and the detection limits of the MEGAFLOW galaxies (magenta). With an empty circle, we show the estimate based on stacking from Freundlich et al. (2021). The solid black lines represent the scaling relations expected for MS galaxies found by Tacconi et al. (2018), scaled to the mean stellar mass and size of the DP sample (log(M_*/M_⊙) = 11.0 and R_e = 8.3 kpc). The dashed line marks the scatter of 0.4 dex found for the M sample.