condition	mean	min	max
4 h after light	8.699086999999999	8.250274	9.1479
8 h after light	8.7143895	8.542325	8.886454
12 h after light	8.217566999999999	7.755542	8.679592
4 h after dark	8.1322025	7.069327	9.195078
8 h after dark	7.924963	7.526889	8.323037
12 h after dark	7.820455	7.820455	7.820455