condition mean min max ZT0-3 404.7 404.7 404.7 ZT4-7 205.7 205.7 205.7 ZT8-11 216.0 216.0 216.0 ZT12-15 383.95 383.95 383.95 ZT16-19 760.3 760.3 760.3 ZT20-23 665.55 665.55 665.55