condition	mean	min	max
4 h after light	5.3769	5.27048	5.5052900000000005
8 h after light	5.454846666666667	5.36894	5.60044
12 h after light	5.306803333333333	5.2127	5.36599
4 h after dark	5.44578	5.4111	5.46401
8 h after dark	5.459276666666666	5.3927	5.5704199999999995
12 h after dark	5.50511	5.41146	5.68398