condition mean min max ZT0-3 300.85 300.85 300.85 ZT4-7 258.0 258.0 258.0 ZT8-11 313.15 313.15 313.15 ZT12-15 234.7 234.7 234.7 ZT16-19 280.9 280.9 280.9 ZT20-23 353.55 353.55 353.55