condition mean min max ZT0-3 128.8 128.8 128.8 ZT4-7 80.0 80.0 80.0 ZT8-11 77.6 77.6 77.6 ZT12-15 85.55 85.55 85.55 ZT16-19 142.9 142.9 142.9 ZT20-23 138.05 138.05 138.05