condition mean min max ZT0-3 36.6384 36.6384 36.6384 ZT4-7 32.704299999999996 32.704299999999996 32.704299999999996 ZT8-11 34.235 34.235 34.235 ZT12-15 36.825 36.825 36.825 ZT16-19 65.752 65.752 65.752 ZT20-23 63.8331 63.8331 63.8331