condition mean min max ZT0-3 0.019844011333333335 0.0 0.03968802266666667 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 0.0 0.0 0.0 ZT20-23 0.041534227 0.0 0.083068454