condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.322167 0.0 0.539656 12 h after light 0.42351666666666665 0.354688 0.468443 4 h after dark 0.16591466666666668 0.0 0.497744 8 h after dark 0.457759 0.0 0.981155 12 h after dark 0.15324833333333335 0.0 0.459745