condition mean min max ZT0-3 0.04171233333333333 0.0 0.125137 ZT4-7 0.0612315 0.0612315 0.0612315 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.03268285 0.03268285 0.03268285