condition	mean	min	max
4 h after light	7.245663333333333	7.14514	7.35306
8 h after light	9.37248	9.34018	9.41438
12 h after light	7.6227366666666665	7.425660000000001	7.7216
4 h after dark	6.967473333333333	6.8167800000000005	7.23533
8 h after dark	6.66153	6.54207	6.72173
12 h after dark	6.82707	6.7087699999999995	7.030710000000001