condition	mean	min	max
4 h after light	5.263963333333333	5.16236	5.32529
8 h after light	5.298336666666667	5.2294	5.402
12 h after light	5.4168400000000005	5.1939400000000004	5.57331
4 h after dark	5.492393333333333	5.24635	5.72421
8 h after dark	5.36977	5.174169999999999	5.56848
12 h after dark	5.55453	5.38636	5.65369