condition mean min max 0 h after light 0.4003985 0.253042 0.547755 4 h after light 0.2540285 0.207789 0.300268 8 h after light 0.7599335 0.728515 0.791352 4 h after dark 0.49715449999999994 0.332335 0.661974 8 h after dark 0.5203705 0.501736 0.539005 12 h after dark 0.313026 0.205631 0.420421