condition mean min max ZT0-3 163.15 163.15 163.15 ZT4-7 86.6 86.6 86.6 ZT8-11 143.65 143.65 143.65 ZT12-15 132.85 132.85 132.85 ZT16-19 152.8 152.8 152.8 ZT20-23 163.2 163.2 163.2