condition	mean	min	max
4 h after light	8.594948500000001	8.504076	8.685821
8 h after light	8.409932999999999	8.300841	8.519025
12 h after light	9.1713205	8.504076	9.838565
4 h after dark	7.525907	6.547738	8.504076
8 h after dark	8.3671705	7.848225	8.886116
12 h after dark	9.020352	9.020352	9.020352