condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.04140454675 0.0367534105 0.046055683 ZT16-19 0.166881328 0.143100823 0.190661833 ZT20-23 0.0 0.0 0.0