condition	mean	min	max
4 h after light	8.825153333333335	8.642660000000001	8.97587
8 h after light	8.4478	8.1816	8.601410000000001
12 h after light	8.05028	7.87038	8.16058
4 h after dark	7.866916666666667	7.6287	8.05866
8 h after dark	8.44796	8.13856	8.698889999999999
12 h after dark	8.811496666666667	8.690539999999999	9.0076