condition mean min max ZT0-3 0.02087232125 0.0 0.0417446425 ZT4-7 0.10125491775 0.052821442999999996 0.14968839250000002 ZT8-11 0.10691830274999999 0.10185052149999999 0.11198608399999999 ZT12-15 0.381782536 0.257295886 0.506269186 ZT16-19 0.61956537 0.610192123 0.628938617 ZT20-23 0.95910261175 0.653802563 1.2644026605