condition	mean	min	max
4 h after light	5.903096666666666	5.8245	5.9841
8 h after light	5.856606666666667	5.612830000000001	6.0588
12 h after light	6.065883333333334	5.86439	6.46155
4 h after dark	6.02787	5.85621	6.35973
8 h after dark	5.8862499999999995	5.69656	5.99895
12 h after dark	5.81416	5.7236400000000005	5.94591