condition	mean	min	max
4 h after light	8.772392	8.387326	9.157458
8 h after light	7.9775624999999994	7.567799	8.387326
12 h after light	8.2451975	8.140333	8.350062
4 h after dark	9.345762	9.242701	9.448823
8 h after dark	8.157695499999999	7.714276	8.601115
12 h after dark	7.820455	7.820455	7.820455