condition	mean	min	max
4 h after light	8.928506666666667	8.41882	9.28898
8 h after light	7.46698	6.970460000000001	7.760860000000001
12 h after light	7.398546666666666	6.780589999999999	7.91414
4 h after dark	8.46093	7.915769999999999	8.79047
8 h after dark	8.800193333333334	8.35073	9.107510000000001
12 h after dark	9.589599999999999	9.24565	9.84732