condition mean min max 4 h after light 4.45968 4.31076 4.6743 8 h after light 4.547773333333334 4.39634 4.69608 12 h after light 4.490153333333334 4.33249 4.75879 4 h after dark 4.46347 4.45244 4.47221 8 h after dark 4.54802 4.33155 4.8200400000000005 12 h after dark 4.55741 4.2981 5.0025699999999995