condition mean min max ZT0-3 490.1 490.1 490.1 ZT4-7 424.0 424.0 424.0 ZT8-11 528.85 528.85 528.85 ZT12-15 596.7 596.7 596.7 ZT16-19 525.55 525.55 525.55 ZT20-23 523.5 523.5 523.5