condition	mean	min	max
4 h after light	3.1286899999999997	2.75529	3.50209
8 h after light	3.152195	3.14801	3.15638
12 h after light	4.24107	3.97104	4.5111
4 h after dark	4.961815	4.65445	5.26918
8 h after dark	4.055345	3.98823	4.12246
12 h after dark	4.21591	4.1735	4.25832