condition	mean	min	max
4 h after light	9.5660635	9.15536	9.976767
8 h after light	8.7788905	8.402421	9.15536
12 h after light	9.0314865	8.706649	9.356324
4 h after dark	10.746935	10.399467	11.094403
8 h after dark	8.811311	8.705116	8.917506
12 h after dark	10.217422	10.217422	10.217422