condition mean min max ZT0-3 108.74007343833333 103.17011419333333 114.31003268333332 ZT4-7 119.86386778333333 109.8475377 129.88019786666666 ZT8-11 117.63331582999999 117.09217334 118.17445831999999 ZT12-15 106.87803819000001 103.15849678000001 110.5975796 ZT16-19 126.47326021499998 113.89870663 139.04781379999997 ZT20-23 127.43070772833335 123.15361532333334 131.70780013333334