condition	mean	min	max
4 h after light	7.774005000000001	6.60165	8.94636
8 h after light	7.418005	6.95082	7.88519
12 h after light	6.57573	6.24752	6.90394
4 h after dark	9.883676666666666	9.52773	10.2488
8 h after dark	11.955433333333334	11.4037	12.41
12 h after dark	11.5524	11.4781	11.685