condition	mean	min	max
4 h after light	7.40725	7.24747	7.5671800000000005
8 h after light	7.595646666666667	7.4364	7.888730000000001
12 h after light	7.80938	7.67128	7.8996699999999995
4 h after dark	7.605986666666667	7.394830000000001	7.770860000000001
8 h after dark	7.4501566666666665	7.318389999999999	7.594060000000001
12 h after dark	7.217976666666666	7.077189999999999	7.3074