condition mean min max 3 h after light 0.0154629 0.0 0.0463887 6 h after light 0.0101875 0.0 0.0305625 9 h after light 0.058171733333333336 0.0 0.152653 12 h after light 0.0 0.0 0.0 3 h after dark 0.011735533333333333 0.0 0.0352066 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0