condition mean min max ZT0-3 0.010171566666666666 0.0 0.0305147 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.1504105 0.1504105 0.1504105 ZT20-23 0.0 0.0 0.0