condition	mean	min	max
4 h after light	4.61721	4.13772	5.0967
8 h after light	4.033265	3.68693	4.3796
12 h after light	3.949145	3.43856	4.45973
4 h after dark	4.63663	3.96359	5.30967
8 h after dark	2.5567	2.39307	2.72033
12 h after dark	3.09535	2.82974	3.36096