condition mean min max ZT0-3 126.63879811250001 102.972619425 150.30497680000002 ZT4-7 35.54876609749999 32.81882054 38.278711654999995 ZT8-11 35.511293995 30.90109664 40.12149135 ZT12-15 28.3655365925 24.99565176 31.735421425 ZT16-19 65.2321235875 49.832479585 80.63176759 ZT20-23 129.47533855 119.34281469999999 139.6078624