condition mean min max ZT0-3 0.10627566666666667 0.071358 0.175504 ZT4-7 0.03396195 0.03396195 0.03396195 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.03334055 0.03334055 0.03334055 ZT20-23 0.0 0.0 0.0