condition	mean	min	max
0 h after light	17.828	17.3844	18.2716
4 h after light	10.196825	9.16835	11.2253
8 h after light	8.380525	8.13137	8.62968
4 h after dark	14.692250000000001	13.5264	15.8581
8 h after dark	15.25675	15.0111	15.5024
12 h after dark	12.3345	12.1987	12.4703