condition mean min max ZT0-3 19.96281774125 3.4109388330000003 36.514696649499996 ZT4-7 376.22305255000003 309.78805865 442.65804645000003 ZT8-11 519.61537795 472.83041994999996 566.40033595 ZT12-15 940.5756932249999 844.78984195 1036.3615444999998 ZT16-19 908.375141975 825.50645135 991.2438326 ZT20-23 614.22727115 588.6379292 639.8166130999999