condition mean min max ZT0-3 0.09711449999999999 0.09711449999999999 0.09711449999999999 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.057889499999999997 0.057889499999999997 0.057889499999999997 ZT20-23 0.08890866666666668 0.08890866666666668 0.08890866666666668