condition mean min max ZT0-3 1.037862 1.037862 1.037862 ZT4-7 0.27401425 0.27401425 0.27401425 ZT8-11 2.865e-07 2.865e-07 2.865e-07 ZT12-15 0.15266 0.15266 0.15266 ZT16-19 1.0700000000000001e-06 1.0700000000000001e-06 1.0700000000000001e-06 ZT20-23 0.11451175666666667 0.11451175666666667 0.11451175666666667