condition mean min max ZT0-3 154.0 154.0 154.0 ZT4-7 110.2 110.2 110.2 ZT8-11 114.8 114.8 114.8 ZT12-15 134.85 134.85 134.85 ZT16-19 138.15 138.15 138.15 ZT20-23 83.0 83.0 83.0