condition	mean	min	max
4 h after light	5.682623333333333	5.59111	5.78596
8 h after light	5.8051699999999995	5.74546	5.91055
12 h after light	5.88907	5.78264	5.94484
4 h after dark	6.335393333333333	6.2010000000000005	6.44907
8 h after dark	6.293853333333333	5.92249	6.50033
12 h after dark	6.310420000000001	6.17365	6.3905400000000006