condition mean min max ZT0-3 122.15 122.15 122.15 ZT4-7 163.4 163.4 163.4 ZT8-11 265.35 265.35 265.35 ZT12-15 462.85 462.85 462.85 ZT16-19 342.3 342.3 342.3 ZT20-23 124.3 124.3 124.3