condition	mean	min	max
4 h after light	9.4449785	8.973832	9.916125
8 h after light	7.976118	7.372661	8.579575
12 h after light	8.431777499999999	8.405032	8.458523
4 h after dark	8.148887	7.692212	8.605562
8 h after dark	8.642924	8.605562	8.680286
12 h after dark	8.400694	8.400694	8.400694