condition	mean	min	max
4 h after light	6.253055	5.83441	6.6717
8 h after light	3.140815	3.00894	3.27269
12 h after light	2.2519299999999998	2.21706	2.2868
4 h after dark	3.226853333333333	3.10487	3.32407
8 h after dark	3.7350333333333334	3.39987	4.05911
12 h after dark	5.57742	5.29824	5.93699