condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.01618283783333333 0.0 0.03236567566666666 ZT8-11 0.11550430016666667 0.0 0.23100860033333334 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0