condition	mean	min	max
4 h after light	7.35533	7.23409	7.47657
8 h after light	7.4703415	7.175575	7.765108
12 h after light	7.8879575	7.765108	8.010807
4 h after dark	7.411162	7.150193	7.672131
8 h after dark	7.482075	7.318008	7.646142
12 h after dark	11.386907	11.386907	11.386907