condition mean min max 4 h after light 4.088961 0.202983 7.66688 8 h after light 1.3657786666666667 0.178486 2.40013 12 h after light 1.344733 0.795961 2.29175 4 h after dark 3.3340933333333336 2.65647 4.4382 8 h after dark 3.8276000000000003 2.32357 5.2319 12 h after dark 4.8195033333333335 2.45367 7.79984