condition mean min max ZT0-3 394.06149999999997 346.0385 482.691 ZT4-7 261.9635 261.9635 261.9635 ZT8-11 41.83895 41.83895 41.83895 ZT12-15 35.1442 33.7852 36.5032 ZT16-19 41.29825 41.29825 41.29825 ZT20-23 115.2605 115.2605 115.2605