condition	mean	min	max
4 h after light	5.1898599999999995	3.28515	7.09457
8 h after light	3.39065	2.56609	4.21521
12 h after light	5.133615000000001	4.6801	5.58713
4 h after dark	8.85399	8.29953	9.40845
8 h after dark	12.9557	12.0946	13.8168
12 h after dark	9.038105	6.86171	11.2145