condition	mean	min	max
4 h after light	8.019647	7.908648	8.130646
8 h after light	7.953385	7.574373	8.332397
12 h after light	8.4495235	8.321634	8.577413
4 h after dark	8.130646	8.130646	8.130646
8 h after dark	8.0086515	7.886657	8.130646
12 h after dark	7.305699	7.305699	7.305699