condition mean min max ZT0-3 120.31201909999999 119.660429 120.9636092 ZT4-7 107.734417035 105.53301080333334 109.93582326666667 ZT8-11 85.82512067333334 83.56693169666667 88.08330965 ZT12-15 103.14136383333334 93.50941013333333 112.77331753333334 ZT16-19 91.11509948166668 79.99533810333334 102.23486086 ZT20-23 81.701080555 81.06248937000001 82.33967174