condition mean min max ZT0-3 86.66222222 86.66222222 86.66222222 ZT4-7 109.64277779 109.64277779 109.64277779 ZT8-11 110.8938889 110.8938889 110.8938889 ZT12-15 94.38 94.38 94.38 ZT16-19 83.73888889999999 83.73888889999999 83.73888889999999 ZT20-23 90.31222221333333 90.31222221333333 90.31222221333333