condition	mean	min	max
4 h after light	5.223093333333333	5.06151	5.3217
8 h after light	5.284316666666666	5.079219999999999	5.48116
12 h after light	5.122599999999999	4.94762	5.35321
4 h after dark	5.083583333333333	4.83407	5.34615
8 h after dark	5.08827	4.83996	5.31238
12 h after dark	5.02579	4.92486	5.16337