condition mean min max 4 h after light 3.56526 2.68015 4.70938 8 h after light 2.130641333333333 0.869684 3.36938 12 h after light 3.12832 1.76266 3.8482 4 h after dark 3.4203099999999997 2.94925 4.12412 8 h after dark 3.059206666666667 2.15754 4.19502 12 h after dark 3.82821 3.41258 4.36973