condition	mean	min	max
4 h after light	10.597276	9.688652	11.5059
8 h after light	9.6437475	8.822359	10.465136
12 h after light	8.927899499999999	8.178027	9.677772
4 h after dark	7.3158185	7.30143	7.330207
8 h after dark	8.672258	8.522527	8.821989
12 h after dark	20.439063	20.439063	20.439063