condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02651425 0.02651425 0.02651425 ZT8-11 0.03102145 0.03102145 0.03102145 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0