condition	mean	min	max
4 h after light	2.999756666666667	2.0611	4.39775
8 h after light	2.528409	0.559517	4.55018
12 h after light	2.4785	1.51664	3.57501
4 h after dark	4.34039	3.21645	5.48107
8 h after dark	3.2744	1.40149	5.04098
12 h after dark	3.63241	2.7775	4.87215