condition	mean	min	max
4 h after light	8.724983333333332	8.47825	8.875919999999999
8 h after light	8.450736666666666	8.17424	8.67107
12 h after light	8.47117	8.28122	8.67488
4 h after dark	9.588366666666666	9.08783	10.1184
8 h after dark	9.83953	9.60857	10.22688
12 h after dark	10.122	9.813989999999999	10.36657