condition mean min max ZT0-3 0.58117425 0.381209 0.7811395 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 1.156199 1.156199 1.156199