condition	mean	min	max
4 h after light	3.24041	3.17585	3.30497
8 h after light	4.046215	3.95041	4.14202
12 h after light	4.22408	4.11759	4.33057
4 h after dark	4.383865	4.11169	4.65604
8 h after dark	3.527235	3.29438	3.76009
12 h after dark	3.721435	3.60264	3.84023