condition mean min max 4 h after light 2.52928 2.49355 2.56501 8 h after light 2.4970999999999997 2.44468 2.54952 12 h after light 2.08783 1.65026 2.5254 4 h after dark 1.8889816666666666 0.718795 2.64156 8 h after dark 2.2068433333333335 1.74126 2.73654 12 h after dark 2.2856166666666664 1.29249 3.51699