condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.109328 0.109328 0.109328 ZT8-11 0.10974329999999999 0.10974329999999999 0.10974329999999999 ZT12-15 0.09439834999999999 0.0288512 0.1599455 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0