condition mean min max ZT0-3 0.05784192999999999 0.0 0.11568385999999999 ZT4-7 0.026205465499999997 0.0 0.052410930999999994 ZT8-11 0.32649176875 0.066604576 0.5863789615 ZT12-15 0.40368701325 0.26180485 0.5455691765 ZT16-19 0.42009078375000003 0.2461602545 0.594021313 ZT20-23 0.1473674295 0.0820112255 0.2127236335