condition	mean	min	max
4 h after light	7.348846666666667	7.26872	7.453189999999999
8 h after light	8.848886666666667	8.66629	9.0758
12 h after light	7.871436666666667	7.701110000000001	8.06944
4 h after dark	6.604843333333333	6.28295	6.81729
8 h after dark	6.4193299999999995	6.13277	6.63397
12 h after dark	5.9542600000000006	5.8499300000000005	6.01167