condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.832751 0.832751 0.832751 ZT8-11 0.8781255 0.8781255 0.8781255 ZT12-15 0 0 0 ZT16-19 0.3003275 0.3003275 0.3003275 ZT20-23 0.21657045 0.21657045 0.21657045