condition	mean	min	max
4 h after light	7.184333333333333	7.112369999999999	7.291110000000001
8 h after light	6.856986666666667	6.7507	6.990139999999999
12 h after light	6.193626666666667	6.08323	6.37014
4 h after dark	6.44754	6.38844	6.55395
8 h after dark	6.88506	6.72261	7.17128
12 h after dark	8.289933333333334	8.085410000000001	8.422989999999999