condition	mean	min	max
4 h after light	9.061296666666667	8.81702	9.35851
8 h after light	9.10908	8.87809	9.47268
12 h after light	9.11121	8.88922	9.34378
4 h after dark	9.166623333333334	9.00468	9.44006
8 h after dark	9.10985	8.87758	9.39043
12 h after dark	8.974906666666667	8.7646	9.23755