Lyman α transmission (Tr(Lyα)) as a function of redshift. The top four first small plots show the distributions of the transmission in four redshift bins 3.85 <  z <  4.1, 4.1 <  z <  4.4, 4.4 <  z <  4.8, and z >  4.8 for each dust prescription. We indicate the number of galaxies entering in the distribution in each of these plots. The bottom plots display the evolution of the transmission with redshift. Our measurements are indicated in red for SB, green for MW, and violet for LMC. We show the measurements for QSOs in blue from Becker et al. (2013), measurements for high redshift galaxies from the VIMOS Ultra Deep Survey (VUDS, Thomas et al. 2017a, in black), and the theoretical prediction from Meiksin (2006) represented with the black dashed line.