condition	mean	min	max
4 h after light	17.255049999999997	16.868	17.6421
8 h after light	10.1659	10.1601	10.1717
12 h after light	9.8324	8.7099	10.9549
4 h after dark	7.868550000000001	7.52188	8.21522
8 h after dark	13.86365	13.2576	14.4697
12 h after dark	17.5524	16.101	19.0038