condition mean min max ZT0-3 0.0775515 0.0 0.11831249999999999 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.059751 0.0 0.119502 ZT16-19 0.10907549999999999 0.10907549999999999 0.10907549999999999 ZT20-23 0.0 0.0 0.0