condition	mean	min	max
4 h after light	8.9949715	8.579445	9.410498
8 h after light	9.0228885	7.847117	10.19866
12 h after light	7.8342695	7.062977	8.605562
4 h after dark	8.7003465	8.605562	8.795131
8 h after dark	8.5065515	8.405297	8.607806
12 h after dark	7.898759	7.898759	7.898759