condition mean min max ZT0-3 0.37091999999999997 0.37091999999999997 0.37091999999999997 ZT4-7 0.22075450000000002 0.22075450000000002 0.22075450000000002 ZT8-11 0.0316049 0.0316049 0.0316049 ZT12-15 0.9206625 0.9206625 0.9206625 ZT16-19 1.3387733333333334 1.3387733333333334 1.3387733333333334 ZT20-23 0.0 0.0 0.0