condition mean min max ZT0-3 54.08818840416667 46.96866760333334 61.207709205 ZT4-7 51.51723883333334 47.86549190666667 55.168985760000005 ZT8-11 63.15382141333333 57.38898028 68.91866254666667 ZT12-15 132.55602497166666 121.04357664333334 144.0684733 ZT16-19 108.97877724 100.2330357 117.72451878 ZT20-23 70.122661005 60.0314403 80.21388171