condition	mean	min	max
4 h after light	8.178072	7.838032	8.518112
8 h after light	8.154861499999999	8.121159	8.188564
12 h after light	8.281168	7.306356	9.25598
4 h after dark	8.121159	8.121159	8.121159
8 h after dark	8.5221205	8.460073	8.584168
12 h after dark	7.920478	7.920478	7.920478