condition	mean	min	max
4 h after light	8.388143	8.001169	8.775117
8 h after light	8.162859000000001	8.094566	8.231152
12 h after light	8.432577	8.231152	8.634002
4 h after dark	8.175347	8.175347	8.175347
8 h after dark	7.731084	7.381363	8.080805
12 h after dark	8.175347	8.175347	8.175347