condition	mean	min	max
4 h after light	8.603179	8.349839	8.856519
8 h after light	8.302347000000001	7.772001	8.832693
12 h after light	9.242450999999999	8.462762	10.02214
4 h after dark	9.519515	8.966396	10.072634
8 h after dark	8.803582500000001	8.573939	9.033226
12 h after dark	7.986423	7.986423	7.986423