condition mean min max ZT0-3 244.5998969066667 178.79168646333332 310.40810735 ZT4-7 304.4006187 293.8760971 314.92514029999995 ZT8-11 362.58378595 352.2104624333333 372.9571094666667 ZT12-15 510.06350381666664 343.03959503333334 677.0874126 ZT16-19 779.708167 776.3767478 783.0395862 ZT20-23 612.9050131500001 573.7790475 652.0309788000001