condition mean min max 0 h after light 2.736575 2.27126 3.20189 4 h after light 2.4276600000000004 2.40919 2.44613 8 h after light 0.9678865000000001 0.897223 1.03855 4 h after dark 2.510305 2.33802 2.68259 8 h after dark 2.690795 2.6795 2.70209 12 h after dark 2.01433 0.67925 3.34941