condition	mean	min	max
4 h after light	8.385001	7.947719	8.822283
8 h after light	8.4379185	8.261939	8.613898
12 h after light	7.7175080000000005	7.484543	7.950473
4 h after dark	8.1513145	7.885028	8.417601
8 h after dark	9.351752999999999	8.669061	10.034445
12 h after dark	8.683023	8.683023	8.683023