condition	mean	min	max
4 h after light	6.960575	6.750875	7.170275
8 h after light	7.117037	6.857352	7.376722
12 h after light	7.9440475	7.203708	8.684387
4 h after dark	7.380359	6.908075	7.852643
8 h after dark	7.404292	7.203708	7.604876
12 h after dark	7.203708	7.203708	7.203708