condition mean min max ZT0-3 1.31068 1.31068 1.31068 ZT4-7 1.5088359999999998 1.5088359999999998 1.5088359999999998 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.2326695 0.2326695 0.2326695 ZT20-23 0.5788274999999999 0.5788274999999999 0.5788274999999999