condition mean min max 4 h after light 5.678663333333334 5.50959 5.8153 8 h after light 5.682723333333334 5.60719 5.81035 12 h after light 5.457053333333333 5.3887599999999996 5.5248099999999996 4 h after dark 5.57618 5.3112900000000005 5.74282 8 h after dark 5.50384 5.43001 5.55483 12 h after dark 5.345883333333333 5.29469 5.4279