Evolution of f_esc, Lyα with absolute UV magnitude M_UV. Photometrically detected galaxies are split into three redshift bins to stress the lack of evolution in this sense, while the evolution with M_UV is fit by the relation in cyan (details in text). Median error bars for the three redshift bins are shown in the corresponding colour and f_esc, Lyα error bars are also listed here for clarity (relevant redshift bin in brackets): 0.18 (2.9 < z < 4), 0.12 (4 < z < 5) and 0.25 (5 < z < 6.7). Absolute magnitude values and their errors are adjusted for magnification. Black triangles denote continuum-undetected LAEs. M_UV values are upper limits and escape fraction values are lower limits. These objects are not included in the fit. Red shaded areas denote regions of incompleteness based on MUSE line-detections: a darker colour representing increasing lensing magnification (see text).