condition mean min max ZT0-3 66.0332 66.0332 66.0332 ZT4-7 59.10495 59.10495 59.10495 ZT8-11 46.39185 46.39185 46.39185 ZT12-15 84.4899 84.4899 84.4899 ZT16-19 91.02335 91.02335 91.02335 ZT20-23 77.77674999999999 77.77674999999999 77.77674999999999