condition mean min max ZT0-3 0.0008378254833333333 0.0008378254833333333 0.0008378254833333333 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0170323 0.0170323 0.0170323 ZT12-15 0.037952229999999997 0.037952229999999997 0.037952229999999997 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0