condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.8682599999999999 0.8682599999999999 0.8682599999999999 ZT12-15 0.0 0.0 0.0 ZT16-19 2.0249533333333334 2.0249533333333334 2.0249533333333334 ZT20-23 0.0 0.0 0.0