condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.2827475618333333 0.0 0.5654951236666667 ZT8-11 0.06577938800000001 0.0 0.13155877600000002 ZT12-15 0.2924423703333333 0.0 0.5848847406666666 ZT16-19 0.0 0.0 0.0 ZT20-23 0.7778069145000001 0.24554358699999998 1.310070242