condition mean min max ZT0-3 0.26296067425 0.0 0.5259213485 ZT4-7 0.0 0.0 0.0 ZT8-11 0.023293640666666667 0.0 0.046587281333333334 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0