condition mean min max 4 h after light 1.504245 1.23908 1.76941 8 h after light 2.106175 1.97593 2.23642 12 h after light 3.50516 3.26304 3.74728 4 h after dark 4.115056666666667 3.94795 4.245 8 h after dark 3.91932 3.18912 4.84304 12 h after dark 1.5392033333333333 1.29046 1.68452