condition	mean	min	max
4 h after light	6.3454500000000005	6.25519	6.477580000000001
8 h after light	7.011186666666667	6.879860000000001	7.09399
12 h after light	7.98792	7.85417	8.09457
4 h after dark	7.78175	7.511989999999999	7.93507
8 h after dark	7.62465	7.36935	7.7534600000000005
12 h after dark	7.18911	7.08696	7.326639999999999