condition mean min max ZT0-3 0.13717425 0.1188945 0.155454 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.123385875 0.0 0.24677175 ZT16-19 0.0 0.0 0.0 ZT20-23 0 0 0