condition	mean	min	max
4 h after light	9.327946666666667	9.08544	9.63247
8 h after light	8.739889999999999	8.61464	8.986469999999999
12 h after light	8.78753	8.60784	9.12043
4 h after dark	9.226096666666667	8.900260000000001	9.60848
8 h after dark	9.667736666666666	9.52587	9.84523
12 h after dark	10.01167	9.673010000000001	10.367989999999999