condition mean min max ZT0-3 0.026537083333333333 0.0 0.0535365 ZT4-7 0.02555925 0.02555925 0.02555925 ZT8-11 0.0269283 0.0269283 0.0269283 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0