condition	mean	min	max
4 h after light	6.66056	6.4675	6.84703
8 h after light	9.405573333333333	9.15808	9.733239999999999
12 h after light	9.43552	9.1023	9.7423
4 h after dark	9.19675	9.03357	9.350530000000001
8 h after dark	8.675896666666667	8.51198	8.8583
12 h after dark	7.4002	7.31455	7.53982