condition	mean	min	max
4 h after light	7.186836666666666	7.03436	7.39336
8 h after light	8.256829999999999	8.23744	8.268139999999999
12 h after light	7.979826666666667	7.6335	8.20904
4 h after dark	7.5713799999999996	7.48814	7.703869999999999
8 h after dark	7.25001	7.0357	7.375089999999999
12 h after dark	6.70744	6.5484	6.873419999999999