condition mean min max 0 h after light 3.96902 3.7587 4.17934 4 h after light 3.6312749999999996 3.22364 4.03891 8 h after light 1.4856449999999999 1.38325 1.58804 4 h after dark 3.6495699999999998 3.26603 4.03311 8 h after dark 6.008535 5.61726 6.39981 12 h after dark 4.58223 4.57253 4.59193