condition	mean	min	max
4 h after light	6.20422	6.0685400000000005	6.47043
8 h after light	8.457856666666666	8.33562	8.68493
12 h after light	7.410566666666667	7.289910000000001	7.56418
4 h after dark	6.28317	6.15108	6.42201
8 h after dark	5.95013	5.87559	6.04824
12 h after dark	5.41113	5.27321	5.59219