condition mean min max 2 h after light 0.7972403333333333 0.378043 1.30923 6 h after light 0.35607198333333334 0.0673609 0.731793 10 h after light 0.28363133333333335 0.0 0.460931 14 h after light 0.326807 0.20991 0.500397 18 h after light 0.35287045 0.0730157 0.577644 2 h after dark 0.793416 0.530612 1.21405