condition mean min max ZT0-3 464.35 464.35 464.35 ZT4-7 292.6 292.6 292.6 ZT8-11 257.35 257.35 257.35 ZT12-15 314.55 314.55 314.55 ZT16-19 354.35 354.35 354.35 ZT20-23 412.0 412.0 412.0