condition mean min max ZT0-3 99.35 99.35 99.35 ZT4-7 101.8 101.8 101.8 ZT8-11 63.05 63.05 63.05 ZT12-15 58.45 58.45 58.45 ZT16-19 103.85 103.85 103.85 ZT20-23 120.05 120.05 120.05