condition mean min max ZT0-3 112.093690525 110.15296129999999 114.03441975 ZT4-7 114.12199129999999 114.0310371 114.21294549999999 ZT8-11 111.297706785 108.20620670333334 114.38920686666667 ZT12-15 109.09806232166666 107.81406901 110.38205563333332 ZT16-19 103.52560601 96.25537522 110.7958368 ZT20-23 98.08813142333334 97.02584630333334 99.15041654333334