condition mean min max ZT0-3 904.15 904.15 904.15 ZT4-7 893.0 893.0 893.0 ZT8-11 594.9000000000001 594.9000000000001 594.9000000000001 ZT12-15 647.55 647.55 647.55 ZT16-19 731.8 731.8 731.8 ZT20-23 890.35 890.35 890.35