condition	mean	min	max
4 h after light	6.18189	5.95805	6.40573
8 h after light	7.01512	6.5739	7.45634
12 h after light	6.836040000000001	6.48841	7.18367
4 h after dark	9.535985	8.66317	10.4088
8 h after dark	8.921035	8.7727	9.06937
12 h after dark	8.400805	8.15445	8.64716