condition mean min max ZT0-3 178.4 178.4 178.4 ZT4-7 95.6 95.6 95.6 ZT8-11 95.35 95.35 95.35 ZT12-15 100.85 100.85 100.85 ZT16-19 112.65 112.65 112.65 ZT20-23 128.0 128.0 128.0