condition	mean	min	max
4 h after light	8.311186666666666	8.16957	8.403189999999999
8 h after light	8.33225	8.18677	8.41067
12 h after light	8.04985	7.9975	8.09827
4 h after dark	8.276653333333332	8.13055	8.43489
8 h after dark	8.286896666666667	8.20133	8.336310000000001
12 h after dark	8.293783333333334	8.19467	8.37073