condition	mean	min	max
4 h after light	7.0248333333333335	6.52032	7.6024199999999995
8 h after light	7.02876	6.27451	8.034839999999999
12 h after light	9.589566666666666	9.23425	10.1027
4 h after dark	8.547326666666667	8.321539999999999	8.89818
8 h after dark	8.44261	8.22645	8.60473
12 h after dark	7.77852	7.52833	8.05015