condition	mean	min	max
4 h after light	8.26957	6.85583	9.68331
8 h after light	7.472365	7.20934	7.73539
12 h after light	9.029105000000001	8.50844	9.54977
4 h after dark	12.0673	11.9765	12.1781
8 h after dark	12.3814	11.5674	12.814
12 h after dark	8.951406666666667	8.63973	9.21467