M_gas as a function of redshift for different M_⋆. The crosses represent M_gas estimates from this work following the method from Scoville et al. (2016). The squares are measurements from Saintonge et al. (2017). The bins that have been corrected for the H-dropout contribution are circled. The thick solid colour lines represent the best-fit from this work using Eq. 20.The shaded area the 68% uncertainty of the fit. The faded solid lines represent the best-fit from this work colour-coded by M_⋆ (using Eq. 21), the faded dashed lines represent the trend from Tacconi et al. (2018), the faded dotted lines are from Wang et al. (2022).