condition mean min max ZT0-3 0.379935491 0.221301693 0.538569289 ZT4-7 0.024994758250000002 0.0 0.049989516500000004 ZT8-11 0.35970972049999994 0.28515921749999995 0.4342602235 ZT12-15 0.448997233 0.4320142065 0.4659802595 ZT16-19 0.5121578875 0.479661505 0.54465427 ZT20-23 0.71322107425 0.57640285 0.8500392984999999