condition mean min max 4 h after light 4.107653333333333 4.02579 4.15235 8 h after light 4.135266666666666 4.0526599999999995 4.25378 12 h after light 4.137313333333333 4.04865 4.31224 4 h after dark 4.10753 3.99499 4.1658599999999995 8 h after dark 4.109006666666667 4.0651 4.15838 12 h after dark 4.12772 4.06494 4.194459999999999