condition mean min max 4 h after light 1.0195115 0.591363 1.44766 8 h after light 1.311385 1.16492 1.45785 12 h after light 1.6852399999999998 1.67159 1.69889 4 h after dark 2.7718966666666667 2.22678 3.74024 8 h after dark 2.45453 2.05475 2.66698 12 h after dark 0.8560576666666667 0.527902 1.09952