condition mean min max ZT0-3 0.028393333333333336 0.0 0.08518 ZT4-7 0.0 0.0 0.0 ZT8-11 0.35125 0.35125 0.35125 ZT12-15 0.33917424999999995 0.0951755 0.5831729999999999 ZT16-19 0.084815 0.084815 0.084815 ZT20-23 0.095638 0.095638 0.095638