condition mean min max 3 h after light 0.608904 0.498791 0.819987 6 h after light 0.988315 0.631982 1.49354 9 h after light 0.607196 0.197831 0.894327 12 h after light 0.8029575 0.318933 1.82216 3 h after dark 1.0724856666666667 0.924497 1.16296 6 h after dark 1.5537833333333333 1.33059 1.91083 9 h after dark 1.397437 0.748421 1.85913 12 h after dark 2.855435 2.45552 3.25535