condition mean min max 4 h after light 5.699471333333333 0.772774 10.3754 8 h after light 4.32982 1.53929 7.07377 12 h after light 5.15564 2.63475 6.68892 4 h after dark 2.2307799999999998 0.0 3.70815 8 h after dark 4.44062 1.31017 8.85791 12 h after dark 4.941 4.29209 6.22189