condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.08568452633333333 0.0 0.17136905266666666 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0253345105 0.0 0.050669021 ZT20-23 0.0 0.0 0.0