condition mean min max 2 h after light 1.171672 0.844122 1.67204 6 h after light 0.6091507166666666 0.0977653 1.27131 10 h after light 0.72591045 0.0919977 1.26501 14 h after light 0.9253351666666667 0.381133 1.5261 18 h after light 1.2071398333333334 0.545929 2.69616 2 h after dark 0.633905 0.161714 1.07505