Evolution of f_esc(Lyα) with redshift, colour-coded by the UV magnitude, with significance of the correlations following the convention from Fig. 6. We see a gradual decrease of f_esc(Lyα) at increasing redshifts, and at the same redshifts we see a decreasing f_esc(Lyα) with increasing UV luminosity as was previously noted. The decrease of f_esc(Lyα) with redshift could be driven by both selection biases as well as increasing IGM neutral fraction, and we explore the redshift evolution of only the UV-bright LAEs in Fig. 9.