condition	mean	min	max
4 h after light	7.807926500000001	7.485207	8.130646
8 h after light	8.059218999999999	7.933581	8.184857
12 h after light	8.6264855	8.622962	8.630009
4 h after dark	7.9819965	7.833347	8.130646
8 h after dark	7.9610665	7.791487	8.130646
12 h after dark	8.130646	8.130646	8.130646