condition mean min max 4 h after light 0.0088785 0.0 0.017757 8 h after light 0.0 0.0 0.0 12 h after light 0.0259205 0.0141405 0.0377005 4 h after dark 0.016763066666666666 0.0 0.0502892 8 h after dark 0.005911966666666667 0.0 0.0177359 12 h after dark 0.0055107 0.0 0.0165321