condition mean min max 4 h after light 12.0378 11.2388 12.8368 8 h after light 11.086549999999999 10.9866 11.1865 12 h after light 10.2468 10.087 10.4066 4 h after dark 12.762049999999999 12.7166 12.8075 8 h after dark 14.00445 13.6546 14.3543 12 h after dark 14.1039 13.7446 14.4632