condition	mean	min	max
4 h after light	7.26614	6.48671	8.04557
8 h after light	7.136430000000001	5.4745	8.79836
12 h after light	6.317545	4.61177	8.02332
4 h after dark	8.696385	6.63987	10.7529
8 h after dark	12.47345	11.2457	13.7012
12 h after dark	8.91559	7.15028	10.6809