condition mean min max ZT0-3 146.35 146.35 146.35 ZT4-7 156.1 156.1 156.1 ZT8-11 108.85 108.85 108.85 ZT12-15 99.9 99.9 99.9 ZT16-19 154.7 154.7 154.7 ZT20-23 162.55 162.55 162.55