condition mean min max ZT0-3 95.45918111 89.34826102000001 101.57010119999998 ZT4-7 116.77894325666666 116.52027844666667 117.03760806666666 ZT8-11 146.821233 144.94024206666666 148.70222393333333 ZT12-15 185.10884751666666 179.98747909999997 190.23021593333334 ZT16-19 128.86440605 125.61804360000001 132.1107685 ZT20-23 135.03463770000002 114.8770417 155.1922337