condition	mean	min	max
4 h after light	9.395238500000001	9.330885	9.459592
8 h after light	8.571101500000001	8.529408	8.612795
12 h after light	8.8995095	8.432985	9.366034
4 h after dark	10.2396965	9.383289	11.096104
8 h after dark	10.292237499999999	9.470936	11.113539
12 h after dark	8.948263	8.948263	8.948263