condition mean min max ZT0-3 0.030216000000000003 0.0 0.090648 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.04548925 0.0 0.0909785 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0