condition mean min max 4 h after light 0.4967365 0.468415 0.525058 8 h after light 0.2052425 0.173213 0.237272 12 h after light 9.47979 8.17498 10.7846 4 h after dark 13.646466666666667 13.5341 13.8104 8 h after dark 3.503416666666667 3.36361 3.718 12 h after dark 1.23674 1.00355 1.36538